The phrase 'wrapped in cotton wool' is sometimes spoken in a belittling sense, as the user sets out to accuse somebody (often a parent) of mollycoddling something or someone (often a child).
When it does refer to a little one, it suggests over-protection and the denial of the chance for a child to learn how to stand on his or her own feet.
It's funny. We take for granted the fact that small children need to be cared for, recognising that this can go too far in a few cases, yet how many of us get anywhere even remotely close to wrapping ourselves in cotton wool?
Be honest, how many of us properly care for our bodies? Too often, perhaps, it can be a matter of ignoring problems in the hope that they'll go away. Occasionally they do. But not always.
I suspect men are worse than women when it comes to self-maintenance, but maybe not that much. The thing is, however, mind and body are pretty closely connected (hopefully anyway - the brain-in-a-jar thing only seems to work in old horror movies) and the maintenance of one impacts upon the other. Looking at my own Moodscope graphs makes it clear that my mood generally takes a tumble if I'm under the weather physically.
This much seems obvious, so it doesn't take an enormous leap of logic to accept that being pro-active about your physical health would probably have a positive impact on your emotional wellbeing.
Getting exercise (if you're able to), eating healthily, making sure you have sufficient sleep: they're all sensible actions if you wish (and who doesn't?) to give your mood a boost.
However it also makes sense to follow up on health issues that you might be ignoring. If there's something that needs attending to, maybe today's a good day to address it.
Unless you're planning on attending a fancy dress party dressed as a snowman, there's no need to wrap yourself in cotton wool, but neither is it a sensible idea to go to the other extreme. Please take care of yourself.