@k0wsk1, In my opinion Caffeine is really effective because we know that it also found in the coffee and we all drink coffee so Enthusiastically and coffee makes our day so refreshing.
We can find Caffeine in some soft drinks also, and this is the era where Soft Drinks are highly used world wide and in my opinion there would be no human being who never consumed Soft Drinks.
And i think that our earth is really mystery and may be there are many Substances which are still out of reach of human beings because in my opinion we've explored earth only cent percent.
And i want to appreciate your work because you are striving hard to bring out some contests which will give Steemians an chance of life time upvote.
Wishing you an great day and stay blessed. 🙂
Thanks for your comment, @chireerocks! Coffee/caffiene is a godsend indeed :) Wishing you a great day as well, you’re entered!
Welcome and thank you so much. 🙂