The Boosting immune System
Kratom has immensely productive immune system boosting capabilities. That is because Kratom leaves are abundant in some of the most qualitative of immune system amplifying Alkaloids, known as the Immunostimulants. These Immunostimulants strengthen the internal defense system of the body (The Immune System).
The overall improvement in the immune system of the body helps in combating with the attacks of the different types of common and severe diseases such as cold, flu or fever. A healthy immune system can repel and in some cases ultimately resist such diseases much more authoritatively as compared to a weaker one.
The four of the most significant alkaloid types of Immunostimulants found in the Kratom leaves are:

Isorhynchophylline

Isopteropodine

Mitraphylline

Isomitraphylline