Context: How hgh supplements work human growth hormone , also called somatotropin , is a protein hormone of amino . Frequently asked questions where should i store my hgh products ? while products are very stable , we mend that you keep them ( and all supplements ) away from extreme heat or .

Question: Why should the products be kept away from extreme heat ?
Options:
0. Because somatotropin is a protein hormone of amino .
1. Because extreme heat may cause damage to the products .
2. Because they are human growth hormones .
3. Because they are also called somatotropin .
Answer: 1