Skimp on fluids, and your body will release an antidiuretic hormone that leads to water retention that could affect the scale, Dr. Setlzer says. While this sneaky effect is one reason why the scale is a poor measure of body mass loss, you can outsmart it by drinking more—particularly if you fill your glass with water or non-calorie alternatives like unsweetened coffee and tea.
In what is perhaps the biggest buzzkill of all time, sex doesn’t quite count as cardio or burn a significant amount of calories: Women burn about 3.6 per minute. "It’s still a good idea," Dr. Seltzer says, citing the activity’s other benefits, like increasing the output of the neurotransmitters serotonin and dopamine, which naturally reduce food cravings.
Probably. If you have overweight or obesity, your risk for many health problems is higher than that of women who are at a normal weight. Even a small amount of weight loss can lower your risk for or even prevent health problems like diabetes and heart disease. Calculate your body mass index (BMI) to see whether you’re at a healthy weight. If you have overweight or obesity, start by making small changes to your eating habits and getting more physical activity.