How do I mention hobbies in my statement without sounding like a child?

One of my unis that I'm going to apply to requires me to talk about my hobbies and relate to how they help me cope with stress. That's all well and good, but two of my hobbies are kind of ordinary.

I like to read. I'm going to mention a specific genre I like to read (not an author) and relate to how that helps me maintain healthy interests beyond the course I've chosen.

I'm also going to mention running, because I really enjoy running. Problem is I don't really do it competitively, more for myself. It really clears my head and allows me to take a break from daily life.

Do these sound childish or pedestrian? Would the admissions tutors find these banal?

I am curious to know which university this is, for which course, and how they told you that this is what they wanted. Can you give some details?

Sheffield, medicine (A100). The exact quote is "breadth and depth of interests, and linking these with ability to cope with stress."

Link: https://www.sheffield.ac.uk/medicine/prospective_ug/applying/whathappens

Very interesting. My view is that they aren't policing your hobbies and only intending to accept those who make nuclear reactors or models of St Paul's Cathedral in their spare time, but are wanting to see how self aware you are about what triggers your personal stress and how effectively you deal with it. The actual hobbies don't matter. I'm not a medicine ps specialist, though, so I'll let others offer their opinions.

So you mean I should emphasize more on reflecting on the hobbies rather than worrying about said hobbies sounding pedestrian?