17 photos that guarantee an adrenaline rush

An adrenaline rush is the body's response to a situation that causes stress. Commonly known as "flight or fight", it's created by a sudden production of adrenaline, accompanied by a fast heart beat and a rise in blood pressure.

It's usually something we feel when we're surprised by the unexpected, but there are plenty of thrill-seekers who love an adrenaline rush, as it makes them feel even more alive and kicking! So, if you think that your life is a bit dull and you fancy an adrenaline rush, imagine you're one of the following people!

1. Fighting the fires in California - what courage!

© kentphotos / twitter  

2. Hopefully he has a good insurance policy

© Ispent1hourchoosingthis / imgur  

3. Meanwhile in Canada...

© morethanwilling / reddit

3. When a kangaroo transforms into a demon

© ADisturbinglyAttractiveCactus / imgur  

4. Nope, it's not an alien, just a very weird fungus

© La-Barba-Loca / reddit  

5. When you see this behind the counter

© YuckThrowthataway / imgur  

6. A huge moth at night

© No_Reason27 / reddit  

7. Close call!

© unknown author / imgur  

8. An unexpected visitor

© 178Demon / pikabu  

9. When it takes 3 guys to hold one fish

© unknown author / reddit  

10. Imagine stumbling across this in the dead of night...

© d4hm3r / reddit  

11. Just before she screamed...

© homerchick / pikabu 

12. We can't bear to look at this!

© Dhaerrow / reddit  

13. The problem with low-flying birds

© sticknpucker / imgur  

14. She looks pretty calm...

© sashadigiulian / twitter  

15. Would you take this killer wave on?

© OKOSGLAZA / pikabu 

16. Run as fast as you can

© thewallsof / reddit  

17. Ever seen someone run across water?

© irepostoldmemes / imgur