Harvard Health Content API

Guidelines recommend that women starting hormone therapy do so before age 60 and within 10 years of menopause onset. Starting later may raise the risks of heart attack, stroke, or dementia. Women who start hormone therapy at 70 or older face even greater cardiovascular risks.

A variety of disparate factors can speed up people’s biological aging, which describes how well their body functions (in comparison to chronological aging). Drivers of aging include ultraviolet light, stress, smoking, obesity, radiation, and loneliness and social isolation.

Most people with early-stage Lyme disease symptoms develop a rash, but it often lacks bull’s-eye features—which many people have been told to look for. Other signs of Lyme disease include headache, neck pain, joint aches, and fatigue.

Full-body MRI scans are marketed as a way to detect hidden cancers and other health conditions before symptoms appear. But these elective scans aren’t as precise as medically recommended MRIs and may reveal harmless abnormalities that lead to unnecessary follow-up tests.

Women’s reproductive history, including first period, pregnancy, and menopause, influences their lifetime exposure to estrogen, which appears to shape brain aging and dementia risk. Menopause is believed to be the strongest reproductive factor, with later menopause tied to lower dementia risk.

It’s possible for people of any age to contract sexually transmitted infections (STIs). STIs are sometimes symptom-free, making them easy to miss, pass along, and ignore.

Pain from gallstones (hardened, stonelike lumps of bile or other digestive fluids that block bile ducts) usually occurs in a distinct pattern. Gallstone attacks typically provoke steady, intense pain in the upper right abdomen that can radiate to the shoulder or back.