The science of why we age is a hot topic, with studies pointing to changes in our chromosomes, cellular stress and epigenetics as culprits. These changes are difficult to reverse with treatments — but ...

See more of our trusted coverage when you search. Prefer Newsweek on Google to see more of our trusted coverage when you search. Scientists have identified a new sign of biological aging that may be ...

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Table 1. Key exercise testing variables. Relevance Units Normal exercise response Population(s) where variable should be assessed Exercise HR Insight into cardiac exercise response: cardiac output = ...

Exercise for brain health: Strength training exercise can reduce age-related cognitive declineiStock Deteriorating brain health is the top cause of diseases like Alzheimer's, Parkinson's and dementia.

Future Cardiol. 2010;6(3):325-342. Some variables listed are relevant irrespective of the population undergoing testing, while others are only valuable in unique patient populations. Exercise HR ...