From the chlorine and chemicals in unfiltered shower water.
The heat and steam opens the pores causing a high rate of absorption of chlorine and other chemicals by the skin - our largest absorbing organ.
Steam from a hot bath can contain up to 20 times the concentration of chlorine in tap water.
The chlorine and trihalomethanes we absorb in our showers are damaging our skin, hair and intestinal flora.
In the following video you can clearly see how our body absorbs the chlorine present in unfiltered water.
Time is the most valuable immaterial commodity in our society and this has a general impact on everything, including on foodstuffs. Food has mutated to adapt to contemporary needs.