news | March 30, 2026

What Does It Mean When You Get Dizzy While Exercising

There are quite a number of things that cause dizziness. However, if it occurs while exercising, it suggests a few things, one of which is dehydration, Holmes Place noted. In an interview with Byrdie, certified personal trainer Emilie Nasseh explains how dehydration leads to dizziness. According to her, "when exercising, your body temperature rises and you may lose a lot of water, which may lead to dizziness."

Because you cannot control the amount of fluid that your body loses while exercising, a good idea will be to hydrate properly before, during, and after your workout, My Fitness Pal suggests.

Also, according to Shape, feeling dizzy while exercising can be a result of low blood sugar, a medical condition that occurs when there's a shortage of glucose in the blood. According to Medical News Today, exercising makes the body use up more glucose than normal, serving as a primary source of energy. So, when there's a low supply of glucose in the blood, you begin to feel dizzy.

To avoid this, consider eating at least 2 hours before exercising so that your body has enough glucose to convert to energy, according to Holmes Place. When you feel dizzy while exercising, try taking time off to rest. However, if it persists, be sure to fix an appointment with your doctor.