hiii dear physical health can affect erection several other factor is also need to be addressed 1st is life syle stress and busy life style make u fatigue and secondary to this it makes less desire in sex and erectile problems 2nd is relationship free communicative and mutual understanding will help sex is mutual act so try to do mutually and tell your problem to partner this will reduce your anxiety and able to erect easily so stress free lifestyle and mutual communication will help third is physical health routine check up and fit physical health is necessary psychological soundness is must and sun set focus method for erection is very useful . plz read google ab this 1st thing you have to do is go for penile Doppler to know blood flow and chance of erection with medications etc now a days a new molecule will release soon name udanafil which has minimal side effect 2nd new launched product name tetrafol plus which contain phosphodiaesterase which help in erection ,, results are coming good with daily intake up to 2 months get well soon thank you