Fibromyalgia by products

When you feel tired, several causes are responsible. Fatigue late in the day, after an effort, is quite natural and is due to different problems.
Fatigue associated with "toxic"

Tobacco, alcohol and pollution we are pumping energy. Wherever possible, we should limit or avoid them.
An unregulated power supply

Fatigue may be due to shortcomings or deficiencies in certain nutrients.
Side effects of medicines

Some treatments (chemotherapy, anxiolytics, antihistamines ...) can have side effects such as asthenia (fatigue). The reactions are variable from one person to another, we must try different medications in the same class to see which is best supported, while remaining efficient.
Hormonal Problems

The decline in sex hormones and pituitary, age-related, or hypothyroidism, makes us more tiring. A doctor may check hormone levels and act accordingly.
Diseases

Hepatitis, HIV, cancer ... may be accompanied by fatigue. It may even be a first sign.