It may be a sign that you're coming down with something. When you're wiped out, whether from physical exertion, mental or emotional stress or simply falling short on sleep, your immune system becomes temporarily suppressed, leaving you more susceptible to viral infections, which can bring on symptoms like yours. (That's why, for instance, marathoners are more vulnerable to catching a cold in the days following a race.) Your body needs adequate rest, a well-balanced diet and a moderate amount of exercise to maintain healthy immune function. So take it easy for a few days, and try to recoup.
If, however, your aches and chills linger despite plenty of R&R, see your physician for a checkup to pinpoint the culprit. Some possible conditions your symptoms might signal:
Adrenal gland problems These glands produce cortisol and other hormones that regulate many body functions. If hormone levels fluctuate, fatigue and achiness can result.
Depression The blues can have an array of physical symptoms as well, including weariness and aches.
Thyroid trouble Located in the neck, this gland plays a key role in temperature regulation, metabolism and more.
An autoimmune disease Fatigue and muscle and joint pain may be due to conditions such as lupus or rheumatoid arthritis.
Treating these or other underlying causes can help you bounce back to your usual energetic self.
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