What signs would you look for in order to tell if a particular medicine or treatment was a fake cure? how can you avoid quackery?

Well sometimes there so ridiculous you can just tell if its legit or not. In some cases, it can be hard to tell. Although sometimes questions may seem plausible. You can prevent this by simply just doing a quick minute of googling, just to be safe. Some remedies can be partly true and some can be completely trust-worthy. In all scenario's doing research is the safest way of deciphering whether a remedy is helpful or not.

Another way to determine if a remedy is legit or not is speaking with your doctor, it is not as quick as researching but it is still safer than trying it. You can also just ask someone you have tried it. If someone you know happens to have tried the remedy. 

no, because those are both different running competitions. while distance runners train their legs and their lungs to run long amounts of time, the sprinters are training their legs and their lungs to give all they have in the little amount of area they need to cover. the brain also plays a huge part in all of this.

the brain is the only thing in your body that sends messages to your body telling you to run. if you are a long distance runner and you have the mind set of a sprinter, you will not get anywhere. if you have a long distance mind set and you have to run 200m in 20 seconds then you will not make it in time.