It’s obvious we wouldn't be able to see if it’s pitch black, unless we have night-vision goggles — or better yet, thermal vision. Body parts, food, appliances, and everything in the universe emits thermal radiation at various wavelengths. Using a FLIR thermal camera, the folks over at BuzzFeedBlue have put all our curiosities to rest and show us what our life would look like if we saw in terms of heat, as opposed to light, in the video, “What Your Life Looks Like In Thermal.”

The BuzzFeedBlue video measures the heat signature of our daily activities, from using our laptops to working out. We are constantly emitting thermal radiation as humans, and this is why many video games, television shows, and movies show the “predator” is always able to see humans no matter the visible light levels. This basically means we have no place to hide unless we cover ourselves in mud à la Arnold Schwarzeneggar in John McTiernan’s Predator to avoid detection.

Going out in public after we smoke, use our laptop, or work out can emit high thermal radiation. A bad habit many of us have is using our laptops, paradoxically, on our lap. These devices heat up to the point they can burn us and lead to health problems after being exposed to such high temperatures, according to Medscape. In the video, the thermal camera shows the heat signature before and after a man places his laptop on his lap. Upon removal, while the rest of his body remained “cool,” his thighs were red hot on the higher end of the heat signature index.

Interestingly, our heat signature changes drastically when we work out and do cardio. Our bodies remain at our cool neutral temperature before the workout and drastically increases after going on the treadmill, especially in our upper bodies. This is because vigorous exercise boosts the body’s heat production and the body temperature by several degrees.

While we may never evolve to be infrared-sensing beings, science suggests there must be some advantage to seeing light rather than heat.