Feeling physically and mentally tired after some activities is a sign of aging; ask any adult over, say 50 tasked with caring for a toddler for the day. And fatigability is a sign within aging of increasing frailty.
ACSH relies on donors like you. If you enjoy our work, please contribute.
Make your tax-deductible gift today!
Popular articles
![](/sites/default/files/styles/taxonomy_midi/public/category/popular.jpg?itok=Nb7H65XL)