Human cells get their energy from adenosine triphosphate, or ATP. When you are ill, your body uses the ATP to fend off the virus or bacteria that is causing the illness. This leaves you with little or no energy, and you often feel depleted and tired. Restoring your energy supplies might take some time, but it can be achieved through the proper nourishment, exercise and rest. Keep in mind that the restoration will not happen immediately, so you need to give your body time to heal.
Stay hydrated by sipping water throughout the day. Don't gulp down a large amount in one sitting because your body won't absorb a large quantity of fluid at a time. A dehydrated body causes fatigue, according to goodhousekeeping.com.
Take short naps in the afternoon if you are feeling tired. Set your alarm for 40 minutes later. Early stage sleep increases alertness and provides a refreshing feeling. Sleep longer than 40 minutes, and you enter a deep sleep stage that is hard to wake up from and leaves you feeling groggy, says goodhousekeeping.com.
Eliminate foods rich in fat such as pizza, burgers and fries from your diet after being sick. High-fat foods seem to trigger a digestive hormone that causes a decrease in brain activity. Instead, eat healthy foods like whole grains, lean proteins, fruits and vegetables. Good food provides the nutrition that is fuel for your body. Avoid empty calories such as those found in soda and junk food.
Exercise. This is difficult when you don't have energy, so start out slow. Walk as much as you can stand, even if it's just going to the mailbox. Slowly increase the walk each day. Exercise increases energy and provides a better night's sleep, according to MayoClinic.com.
Try yoga. Yoga's gentle poses increase circulation, which is important to healing after being sick. The meditation techniques can help to clear the energy-sapping stress out of your mind, says yogajournal.com.
Get the recommended seven to eight hours of sleep a day. It's better to go to bed early than stay up late and sleep in because you get more restorative sleep, which recharges your body, reports snifflesolutions.com.
Caffeine might seem like it's adding energy, but it often will interfere with your ability to sleep, so avoid it after 3 p.m.