As the weather cools down and the common cold becomes, well, common, we all want to boost our immune systems. Sure, an apple a day will help keep the doctor away (as will loads of dark green leafy veggies!), but here are 5 more surprising ways to pump up your immune system to help you stay healthy this season!

Sweat. Exercise increases infection fighters in your body – meaning you’ll not only get sick less, but also you’ll fight off illness faster if you do! In fact, studies show that working out at least 5 days per week can decrease your sick days by 43% if you do get sick!

Not motivated to hit the gym? Click here!

Sleep. If you sleep les than 7 hours per night you’re 3 times more likely to catch a cold than the sleeping beauties out there who get a full 8 hours of zzz’s! So, consider this the permission you’ve been waiting for to hit snooze one more time.

Massage. Studies show that just a half hour massage can help activate important immune-boosting cells. So, pamper yourself and head to the spa. Or, at the very least, give yourself a free massage using tennis balls!

Laughter. Getting a good chuckle is known to lower the levels of stress hormones responsible for hindering your immune system. So, make a habit of calling your funniest friend or watching a comedy for a healthier you.

Sex. Having sex once a week or more has been linked with higher levels immunoglobulin A, an antibody that can protect you from getting colds and other infections! So, get frisky (and healthy)!

Eat this to boost your sex life!