For the sake of the environment
If customary statistics are anything to go by, having a bath consumes up to three times more water than taking a shower. An average of 40 gallons is required to fill the bath tub. Compared to this, a five-minute shower generally only consumes a maximum of 13 gallons of water, depending on the shower head and the duration of the shower. If you use the water sparingly, you can even get by with only 8 gallons. Needless to say, this includes turning off the water while you soap yourself. By the way, taking a shower is also more economical. Having a bath is up to five times more expensive than taking a shower in terms of water and sewage costs.
For the sake of your skin
Generally speaking, a short shower is kinder to your skin than a long bath, ignoring for a moment the effect of bath additives. If you have healthy skin, you can safely shower once a day without harming it. However, it is not a good idea to shower more than once a day, to use very hot water, or to stand too long under the shower, particularly if you have a tendency towards excessively dry skin, as this places unnecessary duress on the skin’s natural protective layer.
Conclusion
As a rule, a brief shower is healthier for your skin and is better for the environment. However, there’s no harm in occasionally taking a bath in the winter to warm yourself up. As usual, it’s a question of “everything in moderation”.