
Lack of sleep might not be the only thing sapping your energy. Little things you do (and don’t do) can exhaust you both mentally and physically—and make getting through your day a chore. Here, experts reveal common bad habits that make you feel tired, and suggest simple lifestyle tweaks that will put the pep back in your step.
Skipping your workout to save energy may actually work against you. In a University of Georgia study, sedentary but otherwise healthy adults who began exercising lightly three days a week for as little as 20 minutes at a time reported feeling less fatigued and more energized after six weeks. Regular exercise boosts strength and endurance, helps make your cardiovascular system run more efficiently and delivers oxygen and nutrients to your tissues. Next time you’re tempted to crash on the couch, at least go for a brisk walk—you won’t regret it.
Being even slightly dehydrated—as little as 2% normal fluid loss—takes a toll on energy levels, says registered dietitian Amy Goodson. Dehydration causes a reduction in blood volume, she explains, which makes the blood thicker. This requires your heart to pump less efficiently, reducing the speed at which oxygen and nutrients reach your muscles and organs. To calculate your normal fluid needs, Goodson recommends, take your weight in pounds, divide in half and drink that number of ounces of fluid a day.
An iron deficiency can leave you feeling sluggish, irritable, weak and unable to focus. “It makes you tired because less oxygen travels to the muscles and cells,” explains Goodson. Increase your iron intake to reduce risk of anemia. She suggests loading up on lean beef, kidney beans, tofu, eggs, dark green leafy vegetables, nuts and peanut butter, and pairing them with foods high in vitamin C (to boost iron absorption).
Striving to be perfect—which, let’s face it, is impossible—makes you work much harder and longer than necessary, says Irene S. Levine, Ph.D., a professor of psychiatry at the New York University School of Medicine. “You set goals that are so unrealistic that they are difficult or impossible to achieve,” she says, “and in the end, there is no sense of self-satisfaction.” Levine recommends setting a time limit for yourself on your projects, and taking care to obey it. In time, you’ll realize that the extra time you were taking wasn’t actually improving your work.
If you assume that you’re about to get fired when your boss calls you into an unexpected meeting, or you’re too afraid to ride your bike because you worry you’ll get into an accident, then you’re guilty of “catastrophizing,” or expecting that the worst-case scenario will always occur. This anxiety can paralyze you and make you mentally exhausted, says Levine. When you catch yourself having these thoughts, take a deep breath and ask yourself how likely it is that the worst really will happen. Getting outdoors, meditating, exercising or sharing your concerns with a friend may help you better cope and become more realistic.
“Eating breakfast is like starting a fire in your body by kick-starting your metabolism,” Goodson says. She recommends a breakfast that includes whole grains, lean protein and healthy fat. Good examples include oatmeal with protein powder and a dab of peanut butter; a smoothie made with fruit, protein powder, low-fat milk and almond butter; or eggs with two slices of whole-wheat toast and low-fat Greek yogurt.
Foods loaded with sugar and simple carbs (like the ones you’ll find in a box or at the drive-thru window) rank high on the glycemic index, an indicator of how rapidly carbohydrates increase blood sugar. Constant blood sugar spikes followed by sharp drops cause fatigue over the course of the day, says Goodson. Keep blood sugar steady by having a lean protein along with a whole grain at every meal, she suggests. Good choices include chicken (baked, not fried) and brown rice, salmon and sweet potato, or salad with chicken and fruit.
“Alcohol initially depresses the central nervous system (producing a sedative effect), but it ultimately sabotages sleep maintenance,” says Allen Towfigh, M.D., medical director of New York Neurology & Sleep Medicine. Alcohol creates a rebound effect as it’s metabolized, which creates an abrupt surge in the adrenaline system, he says. This is why you’re more likely to wake up in the middle of the night after you’ve been drinking. He recommends laying off all alcohol three to four hours before bedtime.
People-pleasing often comes at the expense of your own energy and happiness. To make matters worse, it can make you resentful and angry over time. So whether it’s your kid’s coach asking you to bake cookies for her soccer team or your boss seeing if you can work on a Saturday, you don’t have to say yes. Train yourself to say no out loud, suggests Susan Albers, a licensed clinical psychologist with Cleveland Clinic and author of Eat.Q.: Unlock the Weight-Loss Power of Emotional Intelligence. “Try it alone in your car,” she says. “Hearing yourself say the word aloud makes it easier to say it when the next opportunity calls for it.”
A cluttered desk mentally exhausts you by restricting your ability to focus, and limits your brain’s ability to process information, according to a Princeton University study. Try to tidy and organize at the end of each day, for a positive start the next morning. If your office needs major reorganizing, avoid becoming totally overwhelmed by taking it one step at a time: start by tidying what you can see, then move through your desk and cabinets drawer by drawer.
Checking your email when you should be relaxing by the pool puts you at risk of burnout. Unplugging and allowing yourself to truly unwind allows your mind and body to rejuvenate and helps you return to the office stronger. Block your calendar, let co-workers know, and give yourself the break.
The glaring light of a tablet, smartphone or computer screen can throw off your body’s natural circadian rhythm by suppressing melatonin, a hormone that helps regulate sleep and wake cycles, says Towfigh. Try to avoid all technology for one to two hours before bedtime, he says. Can’t avoid checking your device? Hold it at least 14 inches away from your face to reduce the risk of sleep interference.
Starting your morning with a java jolt is no big deal—in fact, studies show that up to three daily cups of coffee can be good for you—but using caffeine improperly can seriously disrupt your sleep-wake cycle, says Towfigh. Caffeine blocks adenosine, the byproduct of active cells that drives you to sleep as it accumulates, he explains. A study published in the Journal of Clinical Sleep Medicine revealed that consuming caffeine even six hours prior to bedtime affects sleep, so cut yourself off by midafternoon and watch out for sneaky sources of caffeine like chocolate as well as some non-cola sodas, energy waters and pain relievers.
Burning the midnight oil and then sleeping in might seem like a good idea, but it can lead to difficulty falling asleep. Up late on the weekend? Try to wake up close to your normal time, and then take a power nap in the afternoon, if needed. “Napping for 20 minutes or so allows the body to recharge without entering the deeper stages of sleep, which can cause you to wake up more tired,” Towfigh says.