hand washing with acidic soap
The speaker notes that frequent hand washing with standard soaps is excellent for preventing enteric bacterial diseases (the 'dirty hands' diseases like cholera, dysentery) but is less effective against respiratory viruses that are not alive outside a host. He therefore focuses on maintaining the skin's own defense. He observes that many people overuse greasy creams, which feel good for a moment but soon leave the skin very dry with a whitish, cracking appearance. He recommends using a moisturizing (nawilżająca) not greasy (natłuszczająca) product. He also clarifies that the surgical practice of using alcohol-based disinfectants after soap washing is for creating a dry field before gloving, not a daily necessity.
The skin's surface pH is around 4-5 (acidic), which helps maintain antimicrobial peptides and lipid barrier. Alkaline soaps raise pH, disrupting this. Greasy lotions can create an occlusive film that initially traps moisture but later leads to transepidermal water loss and cracking.
ważne żeby mydło które kupujecie było kwaśna więc ph kwaśne dlaczego bo mamy kwaśny odczyn na skórze i to jest fizjologiczne

