Is your personality set in stone at a young age? If you were a jerk in high school will you still be a jerk at 60? Not necessarily. And what changes there are may not be defining. The only time you might see a big disparity could be when comparing yourself to others.
Wrinkles and hair loss are perfectly natural aspects of aging - but science is all about defeating the nature that wants to kill us off.

One aspect of aging is a decline in mitochondrial function.

Blood thinning drugs are preventing 7,000 strokes each year, according to an analysis of general practice records of five million patients from 2000 to 2016 to find out how many people have a diagnosis of atrial fibrillation and how many are receiving treatment to prevent strokes. 

Atrial fibrillation is the most common cause of an irregular heartbeat and five times increases the risk of stroke. To reduce the risk of stroke by around two thirds, patients with atrial fibrillation are given anticoagulant drugs to prevent blood clotting, such as warfarin. 

There are numerous proponents of caloric restriction as a way to achieve longevity, and the belief has a kernel of truth - you don't often find obese centenarians - but what they leave out of the narrative is that these are mice, and they were weaned on a starvation diet.

We're not going to wean human babies on a starvation diet and then expect them to do it for 110 years. They will discover In-N-Out Burgers somewhere along the way. 

But while aging is going to remain the biggest risk factor for diseases like cancer, cardiovascular diseases, type II diabetes and Alzheimer's disease, obesity will soon overtake smoking as the number two. What can bridge the gap between humans and the flies, worms, fish and mice that have benefited from a lifetime diet?
Today at the American Physiological Society (APS) annual meeting at Experimental Biology 2018 in San Diego a group of scholars posited that low "mental energy" may affect walking patterns in older adults more than physical fatigue. 
Photo by sisIn dating, at least the online kind, younger people tend to have a hard line on educational matching, but older people feel like that's less important.
Elderly women who sit more than 10 hours a day have accelerated biological aging, according to an epidemiology paper. They have older cells? 

It's the increasingly popular shorter telomeres hypothesis. Telomeres are tiny caps found on the ends of DNA strands, like the plastic tips of shoelaces, that protect chromosomes from deterioration. It has been found that they progressively shorten with age, just one of the reasons why we are considered to be biologically programmed to die. 
Chemicals found in the blood, biomarkers, can be combined to produce patterns that signify how well a person is aging and his or risk for future aging-related diseases, according to a new study.
In what will send cheers throughout the parenting community, a new paper suggest that helping care for grandchildren might affect the well-being of older adults. Caregivers' feelings partly depend on their perception of the experience, as well as on how they are treated by their family and by the community.  

The researchers looked at information from the "Population Study of Chinese Elderly (PINE)," which examined more than 3,000 Chicago-area Chinese-Americans aged 60 and older between 2011 and 2013. The participants answered questions to screen for depression, anxiety, stress, loneliness, and other factors affecting their health and well-being.
"Could you repeat that?" The reason you may have to say something twice when talking to older family members at Thanksgiving dinner may not be because of their hearing. Researchers at the University of Maryland have determined that something is going on in the brains of typical older adults that causes them to struggle to follow speech amidst background noise, even when their hearing would be considered normal on a clinical assessment.

In the study, researchers Samira Anderson, Jonathan Z. Simon, and Alessandro Presacco found that adults aged 61-73 with normal hearing scored significantly worse on speech understanding in noisy environments than adults aged 18-30 with normal hearing.