Dear Dr. Mo: I feel tired and my legs feel tired and not just in the morning but sometimes during the day and in the evening. What could be causing me to feel low like that?
Dear reader: Feeling tired, sleepy and lacking energy is called fatigue and all these symptoms are our body’s response to something we call Low Energy State.
Weakness is usually one of the first symptoms of any medical condition (as 90% of them are tied to Low Energy State) and it should not be ignored. Together with shortness of breath these two are the most common first presentation of majority of illnesses.
If weakness/fatigue doesn’t go away after enough sleep, good nutrition and reduced stress a doctor should check it out.
Tiredness in legs can commonly be just a result of too much walking, standing or running but if it doesn’t go away or keeps coming back even without excessive physical exertion then you may be in a Low Energy State for some reason that you should discover and correct asap.
Now, a whole variety of reasons exist that result in Low Energy State, which then goes on to cause weakness, fatigue and more specifically, tired legs among other symptoms. These can include:
Lifestyle reasons – feelings of fatigue are most commonly caused by (before we jump to illnesses) sleep deprivation and other sleep disorders (like apnea), overwork (or working in shifts), sedentary behavior (lack of exercise) or unhealthy habits (like smoking, alcohol consumption, drug abuse, skipping meals and inappropriate dieting);
Medical reasons – unrelenting weakness may signal an underlying illness, such as a thyroid dysfunction (hypothyroidism), heart disease, diabetes, cancer, anemia, infection etc. All these deprive us of energy for cells’ functioning and cause exhaustion and fatigue; Continue reading