If we have a verb to X, we can say to X too much by attaching 過ぎる to the end of the verb stem of X. For example, 飲み過ぎる means to drink too much.
If we want to turn a verb ending in 過ぎる into a noun, we can simply change it into the stem form by removing the る from the end. For example, 飲み過ぎ means drinking too much.
|Drinking too much alcohol is not good for (your) body.||アルコオル の 飲みすぎ は 体 に よく ない。arukooru no nomisugi wa karada ni yoku nai.|
|He strained (his) eyes by reading too much.||彼 は 読書 の しすぎ で 目 を 痛めた。kare wa dokusho no shisugi de me o itameta.|