Articles tagged with Life Span
A large study found that education and income have varying relationships with brain volume and cognitive scores across different populations. The associations were strongest in childhood development, suggesting socioeconomic status may not specifically protect the brain from aging effects.
A recent study by MPIDR researchers found that participating in the labor market until age 67 slows cognitive decline and protects against cognitive impairment. This effect holds regardless of gender or educational/occupational attainment, with a slowed rate of cognitive decline rather than improved function.
A University of Missouri researcher is using a grant from the National Science Foundation to explore how time can factor in a building collapse. She's conducting thousands of hours of laboratory tests to determine the breaking points of reinforced concrete building materials.
A new study reveals that metabolism increases rapidly during infancy, peaking at around one year old. After a gradual decline until the 20s, metabolism levels off and then slows down again after age 60, with older adults requiring fewer calories. The findings suggest that muscle loss and cellular changes contribute to this decline.
A new study reveals that metabolism peaks in infancy, followed by a gradual decline until age 60, with the biggest slowdown after 90. The research suggests that tissue metabolism is changing over time, contradicting previous assumptions about lifestyle and body composition.
A survey study found that adults who place importance on religious or spiritual beliefs tend to make more advance care planning choices, such as specifying life-sustaining treatments. The study suggests that these beliefs may play a significant role in shaping end-of-life care preferences.
Scientists have identified nearly 300 gene variations that influence reproductive lifespan in women. Manipulating key genes in mice extended their reproductive lifespan, providing insights into the biology of reproductive ageing.
A recent study found that a muscle protein called CaMKII improves strength, endurance, and fitness in young animals, but also contributes to an evolutionary tradeoff: increased susceptibility to age-related diseases. The research suggests that future therapies targeting CaMKII could stave off diseases of old age.
A new study suggests that dancing can lower cholesterol levels, improve physical fitness and body composition in postmenopausal women. Additionally, dance practice has been shown to enhance self-image and self-esteem, contributing to overall mental health.
A University of Surrey AI model predicts compound properties that promote healthy ageing, identifying flavonoids, fatty acids, and organooxygens as promising candidates. The discovery paves the way for pharmaceutical innovations targeting age-related diseases.
A KAIST research team developed a hydrogel-based flexible brain-machine interface that can detect neural signals for up to six months. The device minimizes foreign body responses by mimicking the properties of surrounding tissues when exposed to body fluids.
A new study by University of Washington researchers estimates that a record-breaking lifespan of 125-130 years is possible by 2100. The study uses Bayesian statistics to analyze data from the International Database on Longevity and predicts that the world record for the oldest person will be broken.
A recent study found that life expectancy and lifespan equality in humans and non-human primates are not driven by aging rate, but by early life mortality rates. The researchers analyzed data from nine human populations and 30 non-human primate groups, revealing a strong relationship between early-life deaths and population aging.
Researchers found that human life expectancy increase is not due to slowing aging but rather improved survival rates among children and young adults, supporting the 'invariant rate of ageing' hypothesis which suggests a relatively fixed rate of ageing across species.
A new study led by Fernando Colchero reveals a strong link between human life expectancy and lifespan equality. Researchers analyzed data from nine human populations and 30 non-human primate populations, including gorillas, chimpanzees, and baboons, to explore the invariant rate of ageing hypothesis.
Researchers found that middle-aged men with cerebral palsy are up to 5.6 times more likely to suffer fractures than men without the disorder. The study also revealed that critical periods of bone health vary across the lifespan for individuals with cerebral palsy, particularly affecting females and males at different times.
Researchers found that transgenic mice with high levels of SIRT6 gene exhibit increased life expectancy and vigor, without frailty. The mechanism reveals enhanced energy generation capacity, facilitating healthy aging, and could lead to human lifespan prolongation methods.
Ant workers infected with a tapeworm live significantly longer than uninfected nest-mates, resembling the lifespan of ant queens. The parasites alter expression of ant genes and release antioxidants, contributing to their extended lifespan.
A Penn State-led study found that maternal stress during pregnancy can shorten the telomeres of male lizard offspring, leading to decreased lifespan. The researchers discovered a sex-specific effect, where stressed mothers give birth to sons with significantly shorter telomeres, highlighting potential implications for human longevity.
A recent study found that reduced food intake in roundworms can have a detrimental effect on three generations of offspring, particularly when they have access to unlimited food. The researchers also discovered that fasting can be costly for descendants and this effect may last for generations.
Researchers have made a breakthrough in photovoltaics technology by developing tandem cells and singlet fission processes that reduce operating temperatures and extend device lifetimes. This innovation leads to a 2%-4% gain in annual energy production and doubles the lifetime of devices for every 10°C reduction in temperature.
Repetitive sequences on the Y chromosome in male fruit flies become more active and toxic as males age, leading to a shorter lifespan. This study suggests that these repeat sequences can impair memory and cause DNA damage.
A study published in JAMA found that the age at natural menopause has increased in US women over the past 60 years, with a corresponding increase in reproductive life span. The research suggests that longer reproductive life spans may be associated with better metabolic health outcomes due to prolonged estrogen exposure.
Researchers propose that luxury goods possess a unique trait of being durable, allowing consumers to buy fewer, higher-end products that will last longer. Marketers can help consumers focus on durability by emphasizing the long-lasting nature of high-end products.
A study published in eLife found that selenium supplementation protects against diet-induced obesity in mice, reducing levels of energy-regulating hormones IGF-1 and leptin. The researchers also observed increased healthspan in yeast grown under selenium-supplemented conditions.
Researchers at the University of Florida have discovered a way to evaluate enzyme lifespan, allowing them to identify enzymes that need improvement. This breakthrough could lead to increased crop yields by reducing energy spent on replacing worn-out enzymes.
A UNIST research team has developed a novel electrolyte additive that enables long lifespan and fast chargeability of high-energy-density lithium-ion batteries. The additive tackles the shortcomings of conventional materials, such as poor mechanical strength and chemical stability.
Dr. Mikhail V. Blagosklonny reviews drugs that extend lifespan and healthspan in mammals, including rapamycin and metformin. He concludes that using these drugs could be the only way to live longer, given current understanding of aging.
Researchers at Kumamoto University created a new system to assess healthy lifespans in nematodes, which may help develop drugs and find foods that extend human lifespans. The system, C-LAS, uses images of living and dead nematodes to classify their health and longevity.
Researchers at the Buck Institute have discovered a compound that slows bone loss in aging mice by up to 31% over the course of a year's treatment. The study provides a treasure trove of data for those studying aging and age-related diseases, including serially profiled individual mice as they aged while testing several therapeutics.
Researchers found that fruit flies' lifespan is shortened when given a choice of foods, which affects their metabolism and brain chemistry. The study's findings may have implications for human aging, as similar metabolic pathways exist in humans.
Researchers found that better glucose uptake in the brain compensates for age-related deterioration, leading to longer life. Improved neuronal glucose uptake also coupled with dietary restrictions showed enhanced lifespans.
Researchers successfully used DNA-editing to extend the lifespan of mice with progeria by correcting the accelerating aging disorder. The treatment restored normal DNA sequences in various organs and improved mouse lifespans from seven months to nearly 1.5 years.
Researchers at Osaka City University discovered that metolazone, a drug used to treat hypertension, activates a mitochondrial stress response that prolongs lifespan in the roundworm Caenorhabditis elegans. The study suggests that repurposing existing drugs for aging control may be possible.
A study analyzing global tree-ring datasets reveals that trees in tropical climates grow two times faster than those in temperate regions but have significantly shorter lifespans. Warmer temperatures above 25.4?C are associated with reduced tree longevity, likely due to water stress.
Research finds that tropical trees' lifespans decrease above 25 C, with implications for animal habitats, air quality, and carbon stocks. The study suggests that global warming will exacerbate tree mortality, affecting biodiversity and CO2 emissions.
The article emphasizes the importance of ensuring equity in hospital resource allocation during pandemics. Implementing protocols that account for the disproportionate impact on neonates and children is crucial. By doing so, healthcare systems can reduce disparities and improve outcomes for vulnerable populations.
A new study found that DNP treatment in zebra finches reduced their lifespan by 20% over four years. The birds showed no short-term adverse effects but suffered from accelerated aging, highlighting the need for more research on DNP's long-term safety.
According to a Georgia Institute of Technology researcher, shutting down fossil fuel power plants by 2035 may not require as many early closures as previously thought. By allowing existing plants to reach their typical lifespans, the cost of closure can be reduced and financial liabilities minimized.
A global study found that macronutrient supplies are associated with lower mortality rates across different age groups. The researchers discovered that the optimal diet composition for reducing mortality risk varies significantly depending on age, with specific ratios of proteins, fats, and carbohydrates recommended for each life stage.
Researchers found that extreme concentrations of serum uric acid (SUA) are associated with reduced patient survival and lifespan, particularly in men. The study suggests high SUA levels may be linked to serious chronic medical conditions such as kidney failure, hypertension, and cardiovascular disease.
A study of over 1.6 million chess moves reveals a hump-shaped curve in performance over the lifespan, peaking at 35 years old. Performance has improved significantly over the past 125 years, especially for younger players and those with increased experience.
Researchers Scott Glaberman and Ylenia Chiari investigate the relationship between body size and longevity in Galapagos tortoises. They hypothesize that enhanced ER stress responses contribute to the evolution of large body sizes and long lifespans.
Research on 200 million-year-old mammal teeth reveals they functioned like reptiles, living up to 14 years. Fossilized cementum rings were used to determine lifespan, contradicting previous warm-blooded mammal assumptions.
UC Riverside psychologist Chandra Reynolds leads a five-year research project to investigate cognitive stability and change across midlife transition in 1,400 participants. The study aims to identify predictors of cognitive maintenance, including genetic factors and lifestyle behaviors.
A new study found that humans exhibit slower epigenetic aging than chimpanzees, with certain DNA sites gaining or losing chemical tags in a clock-like pattern. The researchers analyzed over 850,000 DNA sites in blood samples from 83 chimpanzees aged 1 to 59 and found that aging leaves its mark on the chimpanzee genome, similar to humans.
A global study found that over 90% of conventionally farmed soils are thinning, with many having lifespans of less than a century. However, soils managed with conservation techniques tend to have longer lifespans, and certain practices like converting arable land to forest can help extend soil lifespan.
A genetics study in wild turquoise killifish reveals that small population sizes contribute to the accumulation of harmful mutations, leading to shorter lifespans. The findings provide insights into how population dynamics influence aging and could inform new approaches to understanding human aging.
A double-blind study found that middle-aged mice treated with alpha-ketaglutarate had a significantly improved healthspan, experiencing fewer diseases and disabilities before death. The study suggests that AKG may suppress chronic inflammation, which is a major driver of aging.
Researchers from University of Cambridge and Liverpool have identified a new degradation mechanism for electric vehicle batteries, leading to the development of strategies to improve battery lifespans.
Researchers estimate COVID-19 mortality rates will cut lifespans by about a year, with 1 million deaths projected to reduce life expectancy by three years, while 250,000 deaths would have a more modest impact.
Researchers at KAIST discovered that tweaking roundworm proteins can boost lifespan and activate AMPK, a key player in cellular energy monitoring. This mechanism may be applied to developing longevity-promoting drugs for humans.
Scientists identify ten regions of the genome linked to long lifespan, healthspan, and longevity, finding a potential link between iron metabolism and healthy aging. The study's findings suggest that maintaining healthy levels of iron in the blood could be key to slowing aging and living longer.
Scientists identified two distinct aging paths in yeast cells, with one due to nucleolus decline and the other due to mitochondrial dysfunction. By understanding this master circuit, researchers developed a novel approach to extend lifespan through genetic programming.
Researchers found that the drug mifepristone blocks inflammation and reduces health decline in female fruit flies after mating, leading to longer lifespans. This effect is similar to what happens in women who take the drug, suggesting it may also extend human lifespan.
A study of fruit flies has found that analyzing small molecules involved in cell metabolism can help understand how calorie-restricted diets affect aging and lifespan. The research identified several genes linked to changes in metabolite levels, shedding light on the complex interplay between genetics, environment, and diet.
A new USC-led study demonstrates that the peptide humanin, found in mitochondria, is closely correlated with longer lives and better health in both animals and humans. Higher levels of humanin have been observed in organisms with lower risk for age-related diseases such as Alzheimer's.
A new University of Otago study found that mating with sterile males early in life increases female growth but reduces lifespan. Mating with fertile males later in life has the opposite effect, increasing reproductive output. The findings suggest long-term consequences of social interactions between males and females.
Researchers found that female mice mated with sterile male mice experienced a growth-reproduction trade-off, resulting in weight gain and increased reproductive output in late life. However, this also led to a reduced lifespan compared to those housed with other females.
A study by University of Utah Health found that genetic mutations accumulate at an accelerating rate during puberty, affecting lifespan and fertility. Young adults with slower rates of mutation accumulation lived about five years longer than those with faster rates.