Harvard Health Content API

Vaccines can contain different forms of viruses, and the choice may affect how your immune system responds and which vaccine is right for you.

Osteoporosis in men can have several contributing factors, from hormones and medications to underlying conditions that affect bone health.

Vaginal dryness and discomfort can affect intimacy and daily life. See which options may ease symptoms linked to changing estrogen levels.

A fatty liver diagnosis and a high blood sugar reading may point to more than one concern. See what these findings could mean for your health.

Caregiving can have physical and mental effects. Explore ways to cope and find support.

Memory changes during a migraine can be unsettling and may have several explanations. See which symptoms need prompt medical attention and follow-up.

Rhabdomyolysis can cause intense muscle pain after statin use. See why it happens, what recovery may involve and when medical care is essential.

A change in your sense of smell can have many possible explanations. Find out what factors to consider and when discussing it with a doctor may help.

Entropion can cause more than an irritating eyelash sensation. See what symptoms to watch for and why timely eye care matters.

Stress can disrupt the menstrual cycle, but it isn’t the only possible cause of a late period. Find out what to consider before assuming why.