I am a very active person and exercise multiple times a week, but I can’t seem to boost my stamina levels what can I do?

Running and cycling are both sports that require stamina; however, this is something that takes time and persistence.

Interval training is a great way to boost stamina and endurance levels; it involves alternating intense short bursts of exercise with short bursts of gentler exercise. Gradually increasing the length of each will help to build up your stamina levels.