Summarize the following:
Feeling tired during your period can make you dread going to the gym, but this is the best time to exercise. A good workout can actually boost your energy during your period. If you have cramps, bloating, or other uncomfortable symptoms, it’s OK to skip the gym. Get some rest, drink plenty of water, and try again the next day. Even if you’re not feeling crampy yet, you can prevent any discomfort by taking a non-steroidal anti-inflammatory drug (NSAID), such as ibuprofen, up to an hour before you exercise. This will prevent pain before it happens. Heat can reduce any pain you might feel. Disposable heat wraps adhere to your skin, providing soothing warmth during your workout. You can purchase them at drug stores or grocery stores. These foods can make you bloat, and they may worsen cramping or back pain. Avoiding these foods may also help you reach your workout goals faster. On your period, stay away from:  Baked goods like donuts and muffins. Processed snacks like chips and crackers. Fried foods like french fries. Soda. During your period, your body needs more water than usual. Staying hydrated may reduce headaches or bloating that might occur. Drink 8 ounces (230 g) fifteen minutes before you start exercising, and continue to drink water throughout your workout.

Summary:
Exercise when you feel tired. Take a break if you feel pain. Take a pain reliever before you exercise. Apply a heat therapy wrap to your stomach or back before you exercise. Avoid fatty, sugary, or salty foods. Drink water before, during, and after your workout.