Most of us are familiar with the use of ice therapy by athletes to stimulate recovery but the science behind it can be used in daily life to improve performance, mental focus and reduce stress levels.
When you soak yourself in cold water or use ice packs to lower your temperature , your body is forced to create heat. This is called cold thermogenesis- a process that burns fat and stimulates release of proteins that burn glycogen(main storage form of glucose) from your muscles.
When the muscles are depleted of glycogen, your body receives a signal to increase production of HGH( human growth hormone) which leads to a cascade of positive effects, including :
- Reduced inflammation
- Increased insulin sensitivity meaning the body can use glucose more effectively.
- Stimulate the death of weak and damaged cells to make room for healthier ones.
- Can also improve thyroid and mitochondrial function.
- Release of norepinephrine which helps relieve pain and signals body to produce more antioxidants.
So, basically the good stuff happens in your body. This process helps improve sleep when done at night, helping you fall asleep faster and sleep deeper.
Cold thermogenesis also helps strengthen your vagus nerve- the wandering nerve of the body. The strength of the vagus nerve is called vagal tone. If this is high you are able to relax more quickly after experiencing a moment of stress.
But to get the benefits of cold thermogenesis you don’t necessarily need to sit in an ice bath. There is a simpler and easier way. Putting your face in ice water. I know, sounds odd. This works because the vagus nerve we spoke about is in your face and it is connected to all the nerves in your nervous system, throughout the body. The step-by-step guide:
- Fill a dish(one in which you can fit your face into!!) with water and put it in a freezer.
- When frozen solid, take it out and add water, then stir it up.
- Hold your breath and put your face into the dish for as long as you can hold your breath or until the cold hurts.
This has to be done with a bit of caution. Too long an exposure can cause damage to your skin. You need to start slow with a few seconds and then gradually build up.