Weariness, tiredness, lack of energy. There are many ways to describe those times when you are so fatigued you can’t do anything. Often you bounce back after a quick rest or a good night’s sleep, but if fatigue is occurring more often and lasting longer, it could be a sign of something more serious.
“Men may chalk up fatigue to aging, but there is no reason you should battle ongoing fatigue,” says Dr. Suzanne Salamon, a geriatric physician with Harvard-affiliated Beth Israel Deaconess Medical Center. “Everyone gets tired sometimes, and your endurance may decline with age — you may not move as fast and sometimes tire quicker — but you should never be too fatigued to enjoy an active lifestyle.”
The feel of fatigue
Fatigue can affect you in several ways. You may have less energy to exercise. You may have trouble concentrating, staying alert, and remembering things. You may anger easily and become more socially isolated.
If fatigue appears suddenly or becomes more frequent, it could be related to several common medical conditions or lifestyle changes, according to Dr. Salamon. You should consult your doctor to see if you have any of the following issues.
Anemia. This occurs when your blood has too few red blood cells or those cells have too little hemoglobin, a protein that transports oxygen through the bloodstream. The result is a drop in energy levels.
Heart disease. Heart disease can cause the heart to pump blood less efficiently and lead to fluid in the lungs. This can cause shortness of breath and reduce the oxygen supply to the heart and lungs, making you tired.
Hypothyroidism. An underactive thyroid gland can cause fatigue along with other symptoms such as weight gain, weakness, dry skin, feeling cold, and constipation.
Sleep problems. Sleep apnea is characterized by pauses in your breathing, often lasting several seconds, or shallow breathing, while you sleep. It is common among older adults and those who are overweight. Another sleep-related issue is an overactive bladder or enlarged prostate, which forces repeated nighttime bathroom trips. Either of these can disturb your sleep enough to leave you feeling tired the next day.
Medication. Certain medications can make you feel tired, such as blood pressure drugs, antidepressants, anti-anxiety drugs, and antihistamines. “People react to medications differently and they often end up taking more as they get older,” says Dr. Salamon.
Check with your doctor, especially if you have added a new medication or recently increased your dosage. “Sometimes it helps to take certain medicines, which may cause fatigue, at night rather than in the daytime,” she says.
Low-grade depression or anxiety. Mental health issues often drain energy levels. “You may suffer from depression or anxiety and not even know it,” says Dr. Salamon.