If you have an ectomorph body type, you have a thin, linear ruler body shape with narrow waists, hips, and shoulders. You may also be a combination shape like pear (ectomorph on top and endomorph/mesomorph on the bottom) or apple (endomorph/mesomorph on top and ectomorph on the bottom).
If you have an ectomorph body type, you tend to:
As an ectomorph body type, you're as delicate inside as you are outside. You're often introverted, artistic, private and thoughtful. Your skin may burn easily and you may suffer from extreme body temperatures. Your hair is often fine and grows quickly.
With an ectomorph body type, your metabolism is super fast, which means you're usually trying to gain weight and muscle mass. The first port of call is to take supplements (both protein and other) to get your calorie intake up easily and healthily (no - you can't just eat chocolate!).
To get the most out of your workout, you need to be patient and take longer breaks in between workout exercises. Strength and endurance will need to be developed as muscle mass develops very slowly, but keep at it - your curvaceous body is just a workout away!
Cardio exercise is necessary to stay healthy, but keep these workouts at 60 to 80% of your maximum heart rate in order to avoid burning too many calories that should rather be used to grow muscle mass.
Try to work out 3-4 times a week and do loads of stretching and toning exercises including pilates, yoga, body balance, or thai chi.