So when you're getting eight hours and still feeling tired the next day, it's frustrating. There are four likely culprits behind your low energy: your sleep need is more than eight hours, you're getting less sleep than you think, you've got sleep debt to pay back, or you're out of sync with your circadian rhythm.
There could be a variety of reasons why you are still tired after sleeping for 8 hours. It could be due to poor sleep quality, lifestyle factors such as stress, poor diet, and lack of exercise or an underlying health condition.
Physical causes of tiredness
iron deficiency anaemia. underactive thyroid (hypothyroidism) sleep apnoea.
The most common reason you're waking up tired is sleep inertia. Sleep inertia is the groggy feeling you get when you first wake up. It can last anywhere from 15 minutes to about two hours, and it's totally normal, even if you've had enough sleep. Sleep inertia is no joke, though.
Should you go back to bed if tired? Waking up tired doesn't necessarily mean you should go back to bed and sleep more, especially if you're getting the recommended 7-9 hours of sleep each night. Experiencing a little tiredness upon waking is totally normal and should subside within 15 minutes to an hour.
It is caused by factors that can include stress from significant life events, or changes to your sleep schedule. Or it could be secondary insomnia, which is linked to health conditions like mental health issues, other sleep disorders, illness, or pain — and it can be acute or chronic.
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.
Hypersomnia means excessive sleepiness. There are many different causes, the most common in our society being inadequate sleep. This may be due to shiftwork, family demands (such as a new baby), study or social life. Other causes include sleep disorders, medication, and medical and psychiatric illnesses.
Reasons for fatigue in females include high sleep debt, being out of sync with your circadian rhythm, your menstrual cycle and period, pregnancy, menopause, hormonal contraceptives, poor diet, lack of exercise, stress and anxiety, medication side effects, and medical conditions like thyroid issues or anemia.
Most of the time fatigue can be traced to one or more lifestyle issues, such as poor sleep habits or lack of exercise.
However, most people start experiencing a decline in their energy levels by the time they reach their mid-thirties. And this decline in energy levels can be attributed to various factors, including changes in metabolism, hormonal changes, and lifestyle factors such as diet, exercise, and stress.
Light exposure stops the production of melatonin, a hormone that promotes sleep. Staying in Bed Too Long: If you wake up during the night and cannot fall back asleep, experts recommend getting out of bed after 15 to 30 minutes.
Signs and symptoms of sleep deprivation
Feel tired, irritable, and fatigued during the day; yawn frequently. Have difficulty focusing or remembering things. Feel less interested in sex. Find it difficult to get out of bed in the morning, need an alarm clock to wake up on time, or repeatedly hit the snooze button.
Stress hormones.
Over time, too much cortisol may be linked to such problems as anxiety, depression, and a hard time with memory and concentration. Usually, your cortisol levels spike after you wake up. It may be that your body overreacts to the stress hormone and leaves you feeling down in the mornings.
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. Lifestyle changes can often improve feelings of fatigue in these situations.
Low testosterone levels can cause tiredness and fatigue. This is because testosterone plays a role in our metabolism and production of red blood cells - which is vital for energy. Your testosterone levels naturally drop with age.
Myalgic encephalomyelitis, also called chronic fatigue syndrome or ME/CFS, is a long-term condition with a wide range of symptoms. The most common symptom is extreme tiredness. ME/CFS can affect anyone, including children. It's more common in women, and tends to develop between your mid-20s and mid-40s.
If you aren't feeling rested when you wake up, despite getting to sleep at least 8 hours prior, then it might not be the quantity of your sleep that's the problem. It could be your sleep quality that needs some attention. The amount of sleep you get is important, but equally important is the quality of that sleep.