1) Sleeping near your cell phone

The jury is still out for how unsafe this really is, but who needs your phone that close to you while your sleep anyway? A nearby night stand is a safer bet.

2) Eating meat from fast food restaurants

The heavy use of preservatives cause some who err on the safer side to opt for organic choices, but there’s no definitive proof that hose preservatives are carcinogenic in the short or long term.

3) Going to the Large Hadron Collider in Geneva, Switzerland and standing in the middle of an 8 teraelectronvolt proton beam

Don’t do this.

4) Bathe in highly radioactive nuclear waste

Don’t do this either.

5) Using plastic water bottles

This one is also largely undecided. Some say when heated, the plastics can diffuse into the water, but again, no one knows for sure.