In many ways, your metabolism is a process that runs silently in the background, and thus isn't something you're likely to think about very often. But it if you have a fast metabolism, it can cause some fairly interesting physical symptoms that can be tough to ignore. To put it simply, "metabolism is the process of converting food consumed into energy," Dr. David Greuner of NYC Surgical Associates, tells Bustle. "It is occurring within all living things and is essential to survive."
But it's intertwined with and impacted by many other processes, and can have a profound impact on the way you feel. "Usually, people with fast-paced metabolisms have inherited it from genetics," Dr. Greuner says. "Yet, there are other factors that contribute to your metabolism such as age [..] muscle mass, and your physical activity."
Your metabolism can even change throughout your life, as your lifestyle and health changes, potentially leading to all sorts of weird symptoms,. It's a complex system, and it can be tough to pinpoint what, exactly, is stemming from your metabolism, and what might be a result of something else.
The best way to figure out why you might have a fast metabolism, is to speak with your doctor. They can figure out if it's something you were born with, the result of a lifestyle change, or even a side effect of a health concern. Read on below for some weird physical signs of a fast metabolism, according to experts.