For those tough shifts its effect?
https://scontent-mxp1-1.xx.fbcdn.net/v/t1.0-0/s480x480/14716153_939690399470576_6824062493016307150_n.png?oh=5ac08f3afa0ffa9f8892aa89c2ba67b2&oe=589C60CC
There’s already a thread on this.
Should be able to find your answers there