The phrase "physical side" refers to the tangible or visible aspects or elements of something, as opposed to the emotional, mental, or abstract aspects. Full definition
Genuine man looking for no strings attached adult fun, I have a partner she no longer into physical side of things anymore, home alone on regular basis, willing to host. (widowersdatingsite.com)
Spot On helps you keep track of your menstrual cycle and the emotional and physical side effects of your period. (plannedparenthood.org)
Even the phone's physical side buttons could be going away, replaced by touch - sensitive variants, sources say. (techspot.com)