Time Traveling: Can We Go Back in Time?

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IAm12YearsOld
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Ok so i am aware that if someone manages to travel faster than light, they are technically "travelling through time" but i was wondering if there was a way to travel backwards in time, i tried searching the web but haven't found anything so i was wondering if someone could explain it to me, also is a wormhole possibly useful for traveling back in time because a wormhole actually doesn't seem that hard to create.
Also, can our body even stand traveling through time? i ask this because of g-force and all that stuff.
If we can't is there a way to create something that "stops" g-force
im sorry i sound like a retard but I am quite new to physics (im 12 jesus) and am interested in this kinda stuff :P
 
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