Stop carrying the weight of the world on your shoulders.
别太操心了,没有你地球照样转。 (carry the weight of the world on one’s shoulders:自以为重任在肩。)
This increases their air-resistance and reduces the shock of impact when they hit the ground.
这样就加大了空气阻力,并减少了它们着地时冲击力带来的震动。