A new study finds that athletic frogs tend to have faster-changing genomes, with the rate of evolution correlated with physical fitness. The research suggests that free radicals produced during exercise may cause wear and tear on DNA, leading to genetic changes.
A new study suggests that improving or maintaining physical fitness helps obese and overweight children reach a healthy weight. The research found that students who were initially underfit became fit, leading to a healthier weight, with benefits seen in both boys and girls.
A study of eight male giant pandas found that reproductive fitness varies throughout the year, with waves of activity occurring 3-5 months before most females display estrus. This new understanding will help improve captive panda management and potentially aid in reintroducing pandas into the wild.
The study found that weight loss and improved fitness nearly halved the risk of losing mobility in overweight or obese adults with type 2 diabetes. Weight loss was a stronger predictor of better mobility than improved fitness, contributing significantly to the observed reduction in risk.
A study presented at the American Heart Association's 2012 Scientific Sessions found that cooling the palms of the hands during exercise improved exercise tolerance and cardiovascular fitness in obese women. Holding a cold bottle or using a cooling device may help exercisers work out longer and stick with their regimen.
A new training program has been developed to improve the physical fitness of elite football players, resulting in increased oxygen intake, improved jumping ability, and faster sprints. The study, published in the Journal of Sports Medicine, shows a 8.6% increase in oxygen intake after just 8 weeks of intense training.
A new UC Davis study finds that the increase in childhood obesity among California school children has slowed from 2003 to 2008. The study suggests that expanded fitness testing and outreach efforts are needed to address the persistent obesity trend among younger children.
A recent study found that fitness programs for minority adults are often culturally insensitive, leading to modest improvements in fitness but limited long-term effects. Researchers call for more culturally tailored approaches to increase the effectiveness of exercise interventions.
A two-year clinical trial showed that weight training significantly improved motor symptoms of Parkinson's disease compared to stretching and balance exercises. Weight training led to a 7.3 point improvement in UPRDS scores after two years, while fitness counts group returned to baseline scores.
Dr. Melinda Sothern, a national authority on childhood obesity, emphasizes the importance of recess, free outdoor play, and healthy nutrition in preventing obesity. She suggests elevating the Let's Move! campaign into a policy to promote physical fitness and reduce barriers to prevention.
A study published in PLoS ONE found that men are less likely to match their language to a female conversation partner if she is fertile. The researchers suggest that this could be a way for men to display their mating fitness.
Researchers found that cardiopulmonary exercise testing (CPET) is a significant predictor of mortality in patients after liver transplantation. The study showed that patients with higher fitness levels had lower mortality rates, making CPET a valuable tool for assessing liver transplant candidates.
A study by Brown University researchers found that offering fitness club memberships as a covered benefit attracts healthier patients. This strategy is effective in reducing costs and improving quality for Medicare Advantage plans. The trend of increasing plans offering fitness benefits suggests it may be an attractive business strategy.
A recent study published in PLOS Medicine found that reduced cognitive function in adolescence is associated with a higher risk of subdural hematoma later in life. On the other hand, higher levels of education and physical fitness were linked to a decreased risk of this condition.
Researchers engineered Anopheles mosquitoes to produce higher levels of Rel2, an immune system protein that attacks malaria parasites. The study suggests that this approach could lead to the development of malaria-resistant mosquito populations.
Researchers at Max Planck Institute found that certain mutations can be maintained in populations if they have a heterozygote disadvantage, reducing their spread. This could help achieve safer release of genetically modified animals, such as mosquitoes resistant to malaria.
Researchers Jordan Etkin and Rebecca K. Ratner found that consumers who believe they are close to their fitness goals prefer a limited variety of products. In contrast, those who feel further from their goals are more motivated by a larger selection of options.
A European herb has figured out its own way to survive in environments with low pollinator density, using a delayed selfing mechanism to guarantee seed production. The study found that when populations are small and/or pollinators are scarce, plants can augment seed production via autonomous self-pollination.
A study published in BMC Emergency Medicine found that higher body mass index (BMI) and fitness levels improve CPR performance, while lower BMI and fitness lead to decreased compression depth and fatigue. The researchers recommend changing CPR providers every two minutes to prevent tiredness from impeding proper compression.
A study by University of California, San Diego biologists reveals that bacteria age and use asymmetric division to improve population fitness. By giving more cellular damage to one daughter cell and less to the other, bacteria allow for rejuvenation and diversity in their reproductive investment.
A recent study published in Investigative Ophthalmology & Visual Science found a strong association between physical fitness and reduced glaucoma risk. The research discovered that moderate physical activity can lower the risk of low ocular perfusion pressure, a key factor in glaucoma development.
A study by the Heart and Stroke Foundation of Canada found that cardiac rehab reduces mortality, especially in those with low fitness levels. Patients who take responsibility for their health and make small fitness improvements can live longer.
In a cooperative breeding system, cichlid males who sire offspring defend more effectively against predators and stay closer to the breeding shelter. Subordinate males' helping behavior is linked to direct fitness benefits, including paternity and increased safety.
Researchers found that subordinate males in cichlids increase defense against predators when they sire offspring. Cooperative breeding behavior is affected by direct fitness benefits and indirect benefits like safety.
A new study identifies genetic signatures in Arabidopsis thaliana that govern fitness in different climates. The research reveals climate influences the suite of genes passed on to plants to optimize their survival and reproduction.
A systematic review published in The Cochrane Library found that regular exercise can improve physical fitness, walking capacity, and heart rate among people with CKD. Exercise programs can also increase muscular strength, reduce blood pressure, and enhance overall quality of life.
Research shows playing street football two to three times a week can halve the risk of early death in homeless men. The study found improvements in aerobic fitness, cholesterol, body fat, and blood pressure.
A study reveals how human activities can diminish the usefulness of ornamental traits like colorful feathers as signals of fitness. In contrast, a new field experiment shows that invasive yellow starthistle responds favorably to increased carbon dioxide levels. Plant breeding experts emphasize its potential to bring about a more positi...
A new study published in Archives of Physical Medicine and Rehabilitation found that higher volume of resistance training combined with aerobic exercise did not yield additional benefits for patients undergoing cardiac rehabilitation. However, the combination of RT and AT resulted in substantial physical fitness benefits and reductions...
A new UCLA study found that a six-week memory fitness program improved verbal memory and reduced age-related memory decline in seniors over 80. The program included education on lifestyle factors impacting memory ability and overall brain health, resulting in enhanced self-perceived memory and cognitive function.
Researchers found that interbreeding with archaic humans introduced beneficial variants of immune system genes, such as HLA-B*73, into modern human populations. These gene variants are now more common in West Asian and East Asian populations, where they provide an advantage to modern human fitness.
A study by Jeffrey Martin found that social and environmental factors like classmate support and confidence play a crucial role in determining physical activity levels among underserved children. The study also revealed that girls are less likely to engage in physical activity than boys, highlighting the need for targeted interventions.
A study by UT Southwestern Medical Center found that most bariatric surgery patients can perform large amounts of exercise and improve their physical fitness levels. The study participants who exercised for at least five days a week lost an average of 10 pounds and increased their daily step count significantly.
A new study by Michigan State University researchers suggests that combining multiple mutations can speed up evolution. Multiple mutations may cooperate to give organisms a bigger boost in fitness, allowing them to survive and reproduce at high rates.
Researchers found that increasing incidental physical activity, such as fidgeting at desks or taking short walks, can significantly improve cardiorespiratory fitness. The study, published in Medicine & Science in Sports & Exercise, highlights the importance of moderate physical activity throughout the day for overall health and wellness.
A study found that female plants can control which pollen grains reach their ovules by delaying stigma receptivity, resulting in increased paternal diversity and seed production. This mechanism enhances offspring fitness in the annual herb Collinsia.
A new study by Indiana University finds significant differences in physical fitness levels between patients at safety net community health centers and members of a medically affiliated fitness center. The research highlights the importance of access to exercise opportunities for vulnerable populations, particularly those without health...
Participants lost similar weight and body fat, but the online group reported greater gains in behaviors promoting healthy lifestyles. They also showed increased confidence in physical activity, even in challenging situations.
A University of Houston biologist discovered that beneficial gene mutations can interfere with each other, leading to a decline in population fitness. This finding has implications for predicting the progression of chronic diseases and could lead to new treatments.
Researchers found that about three percent of new mutations are 'multi-nucleotide mutations,' which may allow organisms to leap across fitness valleys and reach a higher-fitness state by acquiring multiple mutations simultaneously. The study provides evidence for a possible new mechanism of adaptation.
Researchers found that cooperative bacteria can evolve behaviors that eliminate fitness advantages derived from cheating within social groups. The 'policing' mechanism allows cooperators to outcompete cheaters in mixed groups, but also strongly benefits cooperator cells in certain contexts.
A simple fitness test can predict a person's risk of heart attack or stroke over the next decade or more. Middle-aged individuals who can run a mile quickly have a lower lifetime risk of cardiovascular disease.
A study published in the American Journal of Preventive Medicine found that obese male patients seeing male physicians had higher odds of receiving weight-related counseling. This suggests that societal norms linking physical fitness to masculinity may influence physicians' attitudes towards obesity care. The findings highlight the imp...
A new study by Johns Hopkins Medicine shows that simple exercise can improve lung function and overall fitness in children with cystic fibrosis. Patients who increased their exercise capacity by 10 or more walking intervals showed significant improvements in lung function scores.
A study published in the Canadian Medical Association Journal found that frailty increases exponentially with age throughout adulthood, not just after 65. Relatively fit individuals had lower mortality rates and used fewer healthcare services than those who were frail.
A study found that media exposure to idealized body shapes improves women's body satisfaction, at least initially. However, this effect is often accompanied by increased dieting behavior and ultimately unsustainable body image.
Research from the University of Arizona found that bacteria in the genus Rickettsia can rapidly evolve whiteflies, making them more likely to survive and reproduce. The bacteria manipulate sex ratios, causing more female offspring to be born, which is unusual for such a short period.
A new study found that the most toxic and brightly colored poison frog species are also physically fit, with higher aerobic capacity than their non-toxic cousins. This is due to their specialized diet of ants and mites, which requires them to forage further and exercise more.
Researchers challenge Inclusive Fitness Theory, citing flawed assumptions and misrepresentation of data. The debate highlights the importance of rigorous scholarship in scientific inquiry.
A team of researchers led by Michigan State University's Richard Lenski found that more adaptable bacteria with potential for future improvement prevailed over competitors with short-term advantages. The study shows that sacrificing some benefits now can lead to a winning move later.
Children and adolescents with inflammatory bowel disease (IBD) are less fit than their peers, with aerobic fitness levels 25% lower and muscle function 10% lower. The study suggests that active living can help reduce the risk of future health problems in IBD patients.
The Project on Emerging Nanotechnologies has updated its inventory of nanotechnology-enabled consumer products to over 1,300 global products. Health and fitness items dominate the list, while silver nanoparticles are used in a significant portion of products.
Researchers developed a new approach to predict which flu strain will be prevalent in a given year by tracking pairs of genetic changes. This method offers insights into epistasis, where mutations interact with each other to affect the virus's fitness. By analyzing these interactions, scientists can gain early warnings of emerging muta...
Investing in public parks and recreational services can lead to increased physical activity, better health outcomes, and a less strained healthcare system. The research suggests that the quality of these services has a direct impact on resident fitness levels and overall well-being.
Researchers at Fraunhofer Institute for Integrated Circuits IIS develop an electronic fitness trainer that collects data on user movements and breathing, providing personalized feedback and advice. The system aims to motivate users towards regular exercise and improve physical well-being, particularly for older adults.
Health experts recommend establishing new traditions to increase happiness and avoid wintertime woes. Small changes can add up over time by focusing on one or two behaviors at a time.
A study by the US Forest Service and University of California, Santa Barbara found that warmer temperatures and reduced precipitation lead to lower tree fitness in southwestern US forests. This weakening of forest health has resulted in higher mortality rates from wildfires and bark beetle attacks.
Researchers challenge traditional views of individuality, proposing an evolutionary perspective that considers the fitness interests of component parts. Meanwhile, a surge in play research reveals its diverse causal mechanisms and evolutionary histories across animal species.
Researchers found that marmots' social behavior has a genetic component, with aggression tolerance and friendly interactions heritable traits. The study, led by UCLA biologists, used social network statistics to analyze the behavior of yellow-bellied marmots over six years.
A new study published in Molecular Ecology found that hares with genetic variation at a specific gene locus have higher reproductive success, including increased fertility and fecundity. The research suggests that variability at the individual level can provide advantages for survival and reproduction.