Most likely, you're still tired after eight hours of sleep because of these three factors: (1) you don't know your sleep need, (2) you're not taking into account your sleep efficiency, and (3) you carry sleep debt.
For most people, feeling tired when you wake up is the result of sleep inertia, which is a natural feeling you experience as you transition between being asleep and awake. This feeling generally dissipates between 15 and 60 minutes after waking, but for some it can last longer.
If you're getting enough shut-eye but still feel sleepy all the time, you could have a sleep disorder. Sleep disorders disrupt a person's ability to fall asleep or stay asleep, or they may cause odd behaviors during sleep, such as sleepwalking.
The two most likely reasons you're always so tired no matter how much sleep you get are you've got high sleep debt or you're not living in sync with your circadian rhythm. You may also feel sleepy if you're ill, pregnant, or you've got a medical condition like anemia or diabetes.
Many cases of tiredness are due to stress, not enough sleep, poor diet and other lifestyle factors. Try these self-help tips to restore your energy levels. If you feel you're suffering from fatigue, which is an overwhelming tiredness that isn't relieved by rest and sleep, you may have an underlying medical condition.
But tiredness or exhaustion that goes on for a long time is not normal. It can affect your ability to get on and enjoy your life. Unexplained tiredness is one of the most common reasons for people to see their GP.
Fatigue can have a variety of causes. Some conditions that cause fatigue include thyroid disorders, iron deficiency anemia, diabetes, chronic fatigue syndrome, and COVID-19. Some other causes of fatigue may involve your diet, sleep, and levels of stress.
Waking up feeling slightly groggy or tired is just part of the human experience. It's called sleep inertia: "The transitional state between sleep and wake, marked by impaired performance … and a desire to return to sleep." The main thing to know about sleep inertia is it is completely normal.
Stimulants are a simple way to get an energy boost in the morning. Caffeinated drinks, such as coffee and tea, are popular breakfast choices because they are effective.
Call for an appointment with your doctor if your fatigue has persisted for two or more weeks despite making an effort to rest, reduce stress, choose a healthy diet and drink plenty of fluids.
Lack of physical or mental energy. Inability to stay awake or alert. Accidentally falling asleep, such as when driving or operating heavy machinery. Inability to maintain or complete an activity.
There are three types of fatigue: transient, cumulative, and circadian: Transient fatigue is acute fatigue brought on by extreme sleep restriction or extended hours awake within 1 or 2 days.
What is vitamin B-12? Vitamin B-12, or cobalamin, is a nutrient you need for good health. It's one of eight B vitamins that help the body convert the food you eat into glucose, which gives you energy. Vitamin B-12 has a number of additional functions.
Interview Highlights. What is hypersomnia: “Hypersomnia is when people sleep too much. When they wake up, even though they've slept ten, 12 hours, they don't feel rested. During the daytime, they also get sleepy or have small naps, and therefore hypersomnia lasts all 24 hours.
"As soon as you wake up after a night of sleep, you should get out of bed. If you lie awake in bed, your brain links being awake to being in bed," according to Professor Matthew Walker from University of California Berkeley.
Possible culprit: A vitamin or mineral deficiency
One possible reason for feeling tired, anxious, and weak is having low levels of iron, vitamin D, or B12. Many experts believe that a significant percentage of the U.S. population is deficient in vitamin D.