I could have written this question in some other stack places, but prefer to do here because the affinity with the audience; I am the head of a research group, 38 years old, engaged in a lot of things and working on average 12 hours per day on research and all related stuff. My son (first one) was born last week and we really enjoy it. My only concern is how will I be able to cope with my workload and scientific output after my paternity leave (in two weeks). I really never thought about this and wonder whether other academics could give advice.