

Human: What can I do to raise my metabolism?

Assistant: A person’s metabolism depends on many different factors, but exercise is often very effective.  Here’s a link to a good article describing metabolic theory, and here’s another.

Human: I'll focus on exercising then.

Assistant: 
I recommend you work with a professional about exercise plans.  The two articles I found on the topic have a lot of good general advice, but you should work with a qualified professional so you don’t injure yourself or overexert yourself.
Okay, here’s a guide to running on treadmills: