Semiconduction in Your Body - Electric Current
Here's an analogy of semiconduction working best in cold -
When your mobile phone is overheated, it stops working. If you put it into the fridge just for a few minutes, it will be ready to go again.
The same happens with the semiconductors in our body - they are made of organic materials such as proteins and collagen, that are in contact with the metabolic water that mitochondria produce.
If you constantly live in a comfortable temperature, you never give your semiconductors a boost.