What It Means if You Feel More Tired on Rest Days Than When You Work Out
Here's the deal: On recovery days, you're relatively stagnant. (Maybe you're just doing some light stretching or Netflix-ing big time.) Just because your heart rate's at rest, however, that doesn't meant that the rest of your body is also chilling.
"Your body is doing some serious work while at rest," says Amanda Freeman, founder of SLT and Stretch*d. "This is literally the time when your muscle tissue heals and rebuilds from your workout. It’s during this time of rest/repair when your body becomes stronger so that it can handle more strain—heavier weights, longer runs, faster intervals, etcetera." In other words, your body's hard at work making sure that tomorrow's workout is awesome.
In order for you to fully recover from tough bouts of effort, your system needs to replenish two things: carbohydrates and fluids. Studies indicate that your body needs about 24 hours to restock its carbohydrate stores and at least a few hours to reabsorb the fluids it needs. That's a pretty quick turnaround time, right?
Our body's tissues, however, take a little longer: Studies indicate that we need several weeks of cycling through active and restful periods for them to full recover (and achieve those gains Freeman talked about above). When you take a day off, your body doesn't have to funnel energy into your workout, so it goes all in on repairing your muscles. This may take a toll on your energy levels.
Also, if you're a morning workout person, FightCamp trainer Jess Evans points out that sleeping in when you don't have to wake up for that 6:30 a.m. workout may be adding to your feelings of fatigue. "You might be on a different schedule which can involve sleeping in, and that can make you more tired. I would recommend sticking as close to a schedule as possible to help with that mind and body fatigue, and getting out in nature or taking a short walk to help refresh your mind," she says. Nabbing an extra dose of sunlight will help your circadian rhythm.
Of course, it's also possible your rest day activities are draining you of your energy. Maybe you're meal prepping for the week ahead, or watching an entire season of Stranger Things—and you find that these activities (while great) are causing your eyelids to droop. If this is the case, you can opt for energizing, yet still restful, active recovery options like heading out for an easy hike, foam rolling, or going for a low-key swim.
Overall, trainers say it's well worth figuring out how to enjoy your rest days because they are absolutely crucial—not only to your physical well-being, but also to your mental health.
"Rest days are not just important, they are essential. Sometimes newer athletes struggle with this concept, but time devoted to rest and recovery is just as crucial as the time we allocate toward our fitness goals. The body and mind need time to repair from the strain of exercise," says SoulCycle master instructor Chris Layda. So find a way to love 'em, fam—they're the key to making sure you get to work out for many years to come.
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