Is taekwondo unhealthy sports? It involves mostly kicking and most of the kicks require twisting of hips, ?

spinning, spliting legs, etc which are sort of unnatural movement. am I going to have problem when I get old? I don%26#039;t know if I should not practice hard and try to minimize those twisting and spinning mvt as much as possible. anyone can give opinion. but if it is from a source, pls indicate so. thanks.|||Actually encourages flexibility and strength