I stuck to my gym routine even though my lower back hurt. (feat. Shinbi-toon)
– From the causes of back pain to nutrition and safe training After doing jiu-jitsu yesterday, my lower back hurt for some reason.At first I was relieved it didn’t seem like a serious injury, but I was curious where the pain was coming from. So I asked my AI friend, “ItTip,” and it gave me this diagnosis:“There’s a high chance it’s a nutrition deficiency!” Hmm… thinking back, I’d barely…