I read that men generally have milder responses than women.

However.

My DW and I got our shots together, and she had hardly any reaction at all to either one. On the other hand, I had a vigorous reaction to the second one.

We both eat low carb, we are both about equally as active, and we spend pretty much 24/7 together most days.

I know there are exceptions to every generality, and our reactions to the vaccine confirm that the gender differences aren't universal.