Fitness

A streak can motivate you to keep up with behaviors ranging from praying to running to sharing pictures on social media

Cardiologists forecast greater heart attack risks as winter and summer temperatures become more extreme

The butterflies, and gas, in your tummy while you’re in flight might not just be from nerves

Limited data on adults age 60 and older raise questions on whether high-priced weight-loss drugs will really help with lowering rates of chronic illness and disability

Experts are more concerned about a lack of activity in older adults who are somewhat overweight than about weight loss

Here’s why your body sheds fat and muscle when you diet

Here’s why older adults naturally lose muscle mass over time and how regular physical activity and resistance training can help

Though you might not be able to significantly rev up your metabolism, there are ways to boost the energy your body burns while doing nothing

Research shows that antifat bias lowers the quality of care for higher-weight patients. Here is one patient’s story

What causes them and how to protect yourself 

For decades, assumptions about weight have clouded our view of health

When it comes to dieting, here’s how to tally the so-called basal metabolic rate