You have to lose fat from all over your body if you want your arms to look better. There is no way to just choose a place on your body to lose fat from.
That being said, you can weight train to tone those areas. Just do some basic weight training (you should definitely get someone to show you in person, not over the internet.) If you do that, your arms will have a better shape, even if you haven't lost any fat. You won't look like a bodybuilder, they train very intensely to get that physique. A few bicep curls won't make you bulk up.
You can't spot target. You can lose armpit fat by reducing your overall body fat, which results from burning more calories than you consume.
you do abdominal crunches and biceps exercises using dumbells.
cardio 30 mins daily,low carbs food,8 hours sleep,no suagr no salt
You exercise....
by doing exercise
Carbohydrates (carbs). Lipids (fats) are an example of carbs, and, when you burn them, you lose weight.
Some diets really do make you lose weight quickly. If you cut out sugars, and fats, and sodium and get a lot of exercise, along with drinking a lot of water, you will lose weight quickly.
how to lose weight fast without exercise
You really should be under a doctors supevision when you try that, but you should be able to lose about a pound a day, provided that you keep up the exercise.
aerobic exercise will work better than anaerobic, but there is no way to control where you lose the weight.
Carbohydrates (carbs). Lipids (fats) are an example of carbs, and, when you burn them, you lose weight.
Too BIG to run/Do exercise
If you mean "weight", eat less calories and exercise.
Eat healthy and exercise.
run
Kids lose fat by running real fast and try to exercise.