To much sun?

Is there such a thing as a plant getting to much sun light outdoors?

One of my friends said that it would get sun poison? >_>

I Live in FL he said that has something to due with it.
I think he's full of shit.

Also on one of my plants, the leafs are pointing up and the first set of the rounded leafs are turning kinda yellowish but the growth seems to be moving on fine.

I'm about 99% sure there is no sun poisoning, cannabis can be growin in 24 hr a day light.

also, if you plants are a month-ish old. those rounded leafs are gunna die. They only serve the purpose of jumpstarting the seedling.

Maybe with not enough water.

Alright thanks guys, the plants are about 3 weeks old.

please tell me your giving them SPF 15 at least! Those babies are gonna get smoked before they even bud!

Yep, I call bullshit. Of course, it TOTALLY depends on the plant we're talking about, too. There are plenty of plants that have evolved to grow best in deep shade, and strong sunlight will scorch and kill those. But.. I don't smoke those plants, does he?

sun poisoning kills millions of people a year havent you heard?? its a global problem kill the sun quick...... your friend is a moron. slap him