Why does working out make me so tired

Think again! A die-hard beauty addict, Margareth lives for iced lattes, lipsticks and pedicures. She believes wearing a red lippie can magically solve almost anything. Skip to content. Sleeping on your yoga mat post work-out? References [1] Physical activity dose-response effects on outcomes of depression and anxiety. Next story : Enter our Christmas Wellness Giveaway now! Related articles.

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However, once you run through all of that glycogen, say, during a workout that lasts an hour or more, your body turns to the glycogen in your liver to fuel your workout.

The only way to get more glycogen in your muscles is to nosh on some simple carbs. Sports drinks and energy blocks are great for providing an instant boost, she says. Weight Loss. United States. Type keyword s to search. Today's Top Stories. Taraji P. Accessible Beauty Products For All. Alyssa Zolna. You are not currently subscribed. It appears your Facebook email address is not subscribed to PureWow. Please indicate how you like to proceed:. I am not currently subscribed to PureWow.

I am already subscribed to PureWow. Please log in to your account. Like What You See? Please accept the terms and privacy statement by checking the box below. Sign up for PureWow Recipes. A valid email address is required. Sign Up. Please enter a valid email address The emails have been sent. Please consider subscribing to PureWow. Sign up for PureWow to get more daily discoveries sent straight to your inbox. Thanks for Sharing! Now like us on Facebook. For example, you can expect your energy levels to dip after a long run or high-intensity interval training.

When you exercise, your muscles repeatedly contract. They use adenosine triphosphate ATP to produce these contractions. ATP is a molecule that provides energy for your cells. Your ATP levels decrease as you continue working out. Your central nervous system CNS also plays a role. During exercise, your CNS repetitively fires signals to activate your muscles. The firing, however, will become less charged the longer you work out. Additionally, exercise increases various neurotransmitters, including dopamine and serotonin.

As a result, you may feel tired and want to take a nap. Limit your nap to 20 minutes. Avoid napping for 30 to 60 minutes. Otherwise, you may enter deep sleep and wake up with sleep inertia. Set an alarm for 25 to 30 minutes.