1. Ectomorph: This body type is characterized by a thin frame, long limbs, and a flat chest. Ectomorphs tend to have a difficult time gaining weight and muscle mass.
2. Mesomorph: This body type is characterized by a muscular build, broad shoulders, and a narrow waist. Mesomorphs tend to be naturally athletic and find it relatively easy to gain muscle mass.
3. Endomorph: This body type is characterized by a round, soft body, a large waist, and relatively short limbs. Endomorphs tend to have a high body fat percentage and can be prone to obesity.
It's important to note that these are just general categories and there is a lot of variation within each body type. For example, some ectomorphs may be able to gain weight more easily than others, and some endomorphs may be more muscular than others.
Ultimately, the best way to determine your body type is to look in the mirror and assess your own unique shape and proportions.