The least likely explanation for this would be that they're training at different intervals, or one is training harder than the other.
The most likely reason is that the way the other person's genetics are most people cant gain muscle as well as others because of disease or their body structure.
Hope this helped!
Oooh. This is a good question. Reminds me of Garnet from Steven Universe. "When two Gems combine, it creates something <span>greater than the sum of their parts."
Steven Universe may be a cartoon but the themes and lessons are honest and true, so! Going off of the two identical phrases, once can infer that the reason a person is greater and different than the sum of their parts is because each individual part compliments the other or makes it stronger. It's the importance of the "connection" between each part that makes the whole greater.
The easiest way to explain it would be with the word "synergy"; t</span><span>he interaction of elements that when combined produce a </span>total<span> effect that is </span>greater than<span> the </span>sum<span> of the individual elements.
Hopefully this helps!</span>
I know one is to get tested. Another could be to use protection that could prevent that kind of stuff. Then if you're already infected, you should tell your partner. And if you do sleep with your partner while infected, tell them to get tested.
Because the brain sends messages for your muscles to move your arm through the nervous system.
Lots of workouts. Do lots to increase muslce size