Hormones: They are the chemical messengers secreted by the endocrine glands.
Symptoms of hormonal imbalance include:
Tachycardia i.e. slow heartbeat and bradycardia i.e. rapid heartbeat
Fatigue: Excess progesterone levels can make you sleepy.
Gain in weight: The hormones including leptin and insulin, sex hormones, and growth hormone plays a major role in appetite, metabolism (the rate at which our body burns kilojoules in the form of energy), and body fat distribution.
Mood swings: Estrogen and progesterone are responsible for controlling the serotonin level in the body.