Answer:
I would say because they're in a set of triplets? This is because there are three babies that are born from the same mother on the same day, and two of those babies would be born on the same day... but they would have to be twins... so it isn't possible unless they are triplets.
She should say to him don't worry theses people are helping you get better and they are going to offer you a lot of help.<span />
Honestly, I'm not positive myself. All I can say is that overworking your joints without enough cool-down time will put you at high risk for arthritis.