I love headphones also- but do yourself a huge favor and try not to turn them up any louder then you need to under the circumstances.
Every single instance of abusing your ears could potentially all catch up with you the day you turn 50.
On the other hand- there will probably be an effective treament for tinnitus and hearing loss by the time many of you reach that age-
So I wouldn’t worry too much about it if your young and being relatively sensible with the duration of your exposure to anything over
90 decibels.
But your best bet is to place a very high value on your hearing if making, playing and enjoying music is a huge part of your life that you would miss dearly and you are considering making a career out of it in various ways.
If your in your 40’s or older- you should probably think twice about pushing your luck with hours of non-stop exposure to excessive volume/noise.
If your ears are ringing after jamming- it means you have done some level of irreversible damage.
Our ears were not designed at all to be subjected to hours of over exposure to dangerous levels of man made noises.
Duration of exposure seems to be the primary factor that causes significant damage-
as opposed to a supposedly less harmful quick burst like when you pull over for a fire engine and the driver inexplicably thanks you with a perfectly timed horn blast as he passes by you- even though there is nobody else in front of him.
Although the quick blast being less harmful theory goes out the widow if you abuse it.
For example, firing a gun without ear protection will catch up with you quick and have severe consequences.
Take a look at Britain’s guidelines for workers if your not sure about what’s recommended.