You would be surprised how much can cold shower improve your health and resulsts from your exercise routine.
When I have a cold shower after morning or evening exercise then I feel incredible fresh and energized.
I found some great benefits from cold shower:
What a Cold Shower Can Do For You
Enhance immunity against infections and cancer
Give your glands (thyroid, adrenals, ovaries/testes) a boost, improving hormonal activity
Jump-start your mood and motivation
Crank up your metabolism to fight type 2 diabetes, obesity, gout, rheumatic diseases, depression, and more
Normalize your blood pressure
Decrease chronic pain
Train and improve your blood circulation
Detoxify your body
Fight fatigue
Strengthen exhausted, irritable nerves
Rejuvenate, heal, and tone the skin
Deepen your breathing
Help with insomnia
Improve kidney function
Reduce swelling and edema
Improve lymphatic circulation, thereby increasing immune function
Reduce stress by regulating your autonomic nervous system
Regulate temperature, fighting chronically cold hands and cold feet and excessive sweating
Keep your hair healthy
Improve hemorrhoids and varicose veins
Reduce aches and pains