You can choose a password length of not more than 50 characters. Do not forget to switch keyboard layout to the English. Do not choose a password too simple, less then 4 characters, because such a password is easy to find out. Allowed latin and !@#$%^&*()_-+=., characters
Create Free Account
Already have an account? Enter
Back
Welcome back!
Please enter all the fields
Incorrect login or password entered
Sign In
Forgot your password?
Don’t have an account? Create Account
Back
Forgot your password?
Please enter your Email
This Email is not registered in Simkl
Failed to send email, try again later
Don't worry. It's easy to reset.
Please enter your Simkl username or E-mail from your account to start the password recovery process.
Reset Password
We have sent instructions to the email address you provided during signup. Please follow the link from the email to continue.
Here's what happens to your knuckles when you crack them
One man cracked his knuckles in one hand for 60 years and not the other. Watch the video to see what he found out.
Help us make more ambitious videos by joining the Vox Video Lab: http://bit.ly/video-lab
There's a long-held myth that cracking your knuckles can damage your hands. The sound definitely might make people around you cringe, but what's making those noises, and is it actually bad for you?
There's a space in your joints filled with synovial fluid, a liquid that reduces the friction in your joints when you move. It contains gases (oxygen, nitrogen, and carbon dioxide).
When you pop a joint, you stretch out that space between the bones. That expanding space creates negative pressure, like a vacuum, that sucks in the synovial fluid. It forms bubbles, which then collapse, and that's what you hear.
Most medical sources agree that unless you experience pain when you pop your joints, you're probably fine to keep doing it. Researchers (including one man who cracked his knuckles on just one hand for 60 years) haven't established a connection between cracking your knuckles and arthritis.
One 1990 study of 300 people did find that cracking knuckles over a long period of time led to hand swelling and decreased grip strength, but there hasn't been any follow-up research on that.
Read it here: https://www.ncbi.nlm.nih.gov/pmc/articles/PMC1004074/pdf/annrheumd00439-0036.pdf
Vox.com is news website that helps you cut through the noise and understand what's really driving the events in the headlines. Check out http://www.vox.com
Check out our full video catalog: http://goo.gl/IZONyE
Follow Vox on Twitter: http://goo.gl/XFrZ5H
Or on Facebook: http://goo.gl/U2g06o
You can paste URL of the image inside
your comment and it will be
automatically converted into the image
when reading the comment.
Find a GIF
Create a Meme
How to add a video:
To add a video paste video url directly into your comment. Example:
https://www.youtube.com/watch?v=s7L2PVdrb_8.
Do not post links to copyrighted video content (TV Episodes,
Movies). Share them privately if
needed.