A: Dumbbells, a fitness tool that looks "very manly", are also very helpful for women to lose weight. However, fitness experts remind that due to different muscle structures, dumbbells with different weights must be used in different parts of the human body to lose weight. For the arm, you can choose 3~5 kg dumbbells; Dumbbells of about 2 kg are generally recommended at the waist; The abdomen is recommended to be 2~3 kg. You might as well buy adjustable dumbbells in the market and increase or decrease the weight at any time according to your actual needs. The following is a set of dumbbell basic slimming movements: 1. Stand with your legs lunged, belly in, one arm backward, the upper arm as close as possible to your body, elbow bent, swing forward, and then change arms to repeat the same action. 2. Stand with your feet shoulder width apart, hold a dumbbell in your left hand, put your right hand behind your neck and bend to the left; Reverse repeat. 3. Legs are shoulder width apart, knees are bent, chest leans forward, left hand is pressed on knees, right hand holds dumbbell and swings arm in the direction of left toe, then pulls back to hip side with back strength, and repeats in the opposite direction. When practicing, each group should do 15~25 times, and the interval between each group should be controlled at 1~2 minutes.