Koichi said that garlic is a cure for constipation, but I'd say curing constipation with garlic is impossible.
Even though Koichi makes unreasonable demands, the Tofugu team manages to meet them by overworking themselves.
It’s impossible to lick your own elbow.
If you can do nothing within reason, then what you're trying to do is unreasonable and probably downright impossible. If you still try, you're probably just overdoing it.
This is a jukugo word, which usually means on'yomi readings from the kanji. As long as you know the readings for these kanji, you should be able to read this word just fine.