No I don't routinely excercise unless I've motivated to go on a strict diet. Then I mix in exercise with it. As of now, I just take my evening or night walks. Mile or two
I have the basic fear most have. Not excessive like screaming and running.
But a spider will definitely make me turn into a ninja
I'll slap, kick, throw a shoe..whatever
Loop Quantum Gravity has, in my opinion, more feasibility than a worm hole. However a theory of everything as Einstein envisioned, has not proven to be attainable.. Still no explanation for quantum entanglement for example, so we have a ways to go.
My favorite junk food is still Tater Tots...damn them!