When I say they can be healthy and unhealthy at the same time, I mean for example when you are old, strength and muscle can protect you in case of illness. If you're frail and weak and have no muscle you will wither away to nothing faster. They might make your bones stronger along with the weight lifting, I think over 70s who break a hip or leg 90 percent of them die within 6 months. It's not uncommon for docs to say your physique saved you from dying from an accident. There are many other situations where steroids can keep you from dying, and obviously they are used to recover from things like burns. One indication for Anavar is anorexia or low bodyweight.
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Higher testosterone is not the problem it is the test to estrogen ratio you don't want to fuck up
Not to be argumentative but there's a debate among steroid "experts" on what to do with high estrogen. Some say let it go where ever it goes on steroids, the estrogen should go up. Others say you should control it via Antiestrogens or by adding steroids such as Primo, Mast, EQ etc. Everyone agrees that low estrogen is very detrimental to health. Some claim the reliance on aromatase inhibitors will cause various health problems as estrogen is cardioprotective, brain protective and so on. One fella on 2 or 3 grams of test and by adding like 800mg of EQ his estrogen was zero! One misunderstanding many have is that water retention from steroids ís caused by estrogen only. Even something like tren can cause water retention. I'm not sure an aromatase is ever a good idea on true TRT; at least you can debate it.