Do the vibes you give off bring you success or failure? Health and happiness or sickness and disease?
Like radio waves, all things have a vibration, even us. 
Radio waves are a form of electromagnetic radiation produced by vibrating electric charges (vibes) that transport energy from one place to the next. These waves travel through space where no matter is present. -- Hmmmm.
This sounds very similar to how our own vibes can travel from one person to the next. It is a scientifically proven fact that we humans have electricity in our bodies.
- My analogy here is that the electric charges (or vibes) that we give off are contagious and can spread to other people and vise versa. Similarly, our vibes can spread to different parts of ourselves, influencing many things associated with our physical and mental health.
An article in Psychology Today talks about the importance of choosing wisely when it comes to who we hang out with because vibes are indeed contagious and can make us sick in the mind or body.
That's right, you can be infected by some else's mood and vise versa!
Source
Would you rather be infected by somebody's good mood or bad mood?
Give me somebody else's good mood any day!
Just like, for example, this guy here in this video. I have watched this upwards of 20 times just to see if it would make me laugh again, and each time, I break out laughing at this guy. It is so funny how this gets me every time. But it does. His mood is sooo contagious and so is his laugh and the reason he's laughing.
Hilarious!