What if my hubby is overworking?

I wanna kno if my hubby is overworking or not he spent 7 days on the job this week 5 days on the full time one 7.30am to 3.30pm, 2 years on his own business job (all hours sometimes). I'm worried about my hubby west he told me tonight his body doesnt feel relaxed he didnt touch his dinner and just pass out in front of Netflix tonight, his eyes are like red. Perhaps it's over work? I look after our baby hes one mth, I cook, clean, bill pay, budget and grocery shop I am on maternity leave 12 months which I may extend to 12 months more. Is there anything we can do without me resulting in paying child care to go back to work and hubby doing 7 days? he's showing signs depression like u kno pushing food around on your plate, mood swings, over sleeping.