Healthy Aging | ScienceDaily

Taking it easy as you get older? Wrong

6 days 10 hours ago
A team of evolutionary biologists and biomedical researchers lay out evolutionary and biomedical evidence showing that humans, who evolved to live many decades after they stopped reproducing, also evolved to be relatively active in their later years. The researchers say that physical activity later in life shifts energy away from processes that can compromise health and toward mechanisms in the body that extend it. They hypothesize that humans evolved to remain physically active as they age -- and in doing so to allocate energy to physiological processes that slow the body's gradual deterioration over the years. This guards against chronic illnesses such as cardiovascular disease, type 2 diabetes, and even some cancers.

A genetic change for achieving a long and healthy life?

1 week 2 days ago
Researchers presented new insights for improving the health span by just regulating the activity of a protein. A research group has identified a single amino acid change in the tumor suppressor protein phosphatase and tensin homolog (PTEN) that dramatically extends healthy periods while maintaining longevity.

Researchers discover new insights about tau proteins in people living with ALS

1 week 6 days ago
Investigators found elevated levels of tau and a phosphorylated form of the tau protein in brain tissue from deceased people who had amyotrophic lateral sclerosis (ALS) and carried a mutation in the C9orf72 gene. The team also identified new genetic mutations in the tau gene that may exacerbate ALS onset or progression. Tau in the cerebrospinal fluid may be a viable biomarker for ALS because levels correlate with disease progression.

Common blood pressure drug does not slow down the progression of more advanced Alzheimer’s, study finds

1 week 6 days ago
New research has shown the drug losartan, normally used to treat high blood pressure (hypertension), is not effective in slowing down the progression of Alzheimer's disease (AD) in people with mild-to-moderate disease after 12 months of treatment. However, the drug could still be of benefit if prescribed for longer and if given to people with very early disease.

How surviving cancer as a child affects lifelong health

2 weeks ago
The researchers are now calling for these long-term health effects to be considered when young people and their families discuss treatment options with their healthcare team initially. The study found that people who survived cancer had five times as many GP or hospital visits relating to cardiovascular disease by age 45, as a matched control group of people who had not had cancer early in life. They also had much higher numbers of healthcare visits relating to infections, disorders of the immune system, and subsequent cancers.

For stem cells, bigger doesn’t mean better

2 weeks 1 day ago
A new study suggests that enlargement of stem cells contributes to age-related decline in function. The researchers found that blood stem cells, which are among the smallest cells in the body, lose their ability to perform their normal function -- replenishing the body's blood cells -- as they grow larger. When the cells were restored to their usual size, they behaved normally again.

Stem cells do not (only) play dice

2 weeks 6 days ago
In just a few weeks a completely new organism develops from a fertilized egg cell. The real miracle is that a bunch of identical stem cells turns into completely different, specialized cell types. A team has now been able to show that the specialization of individual cells during embryonic development is not, as previously assumed, exclusively left to chance but is rather determined by cell communication.

For women, greater exposure to estrogen in life may protect brain regions that are vulnerable to Alzheimer’s

3 weeks 3 days ago
The drop in estrogen levels that occurs with menopause brings declines in the volumes of 'gray matter,' the cellular matter of the brain, in key brain regions that are also affected in Alzheimer's disease. But a new study suggests that greater cumulative exposure to estrogen in life, for example from having had more children or from having taken menopause hormone therapy, may counter this brain-shrinking effect.
1 hour 27 minutes ago
Healthy Aging | ScienceDaily
Healthy aging is a journey and a process. Read articles on treating bladder problems, slowing dementia and understanding health issues related to aging.
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