Isayensi Ye-Sauna: Ukuvezwa Kokushisa Kukhulisa Kanjani Impilo Yenhliziyo Nokuphila Isikhathi Eside (Kusuka Ku-JAMA Yangaphakathi Yemithi)
Ukugeza i-sauna akuyona nje inkambiso ephumuzayo; kuwumkhuba osekelwa isayensi onezinzuzo ezijulile zenhliziyo. Ucwaningo oluphawulekayo lwango-2015 lwe-JAMA Internal Medicine olulandelela amadoda angu-2,300 ase-Finnish iminyaka engu-20 luthole ukuthi izikhathi ezi-4-7 zesonto ngalinye ze-sauna zinciphisa ukufa kwabantu bonke ngo-40% kanye nokufa okuzumayo kwenhliziyo ngama-63%. Umlingo usekucindezelweni kokushisa okuphindaphindiwe: izikhathi ezingu-176–212 F (80–100°C) zibangela i-vasodilation, ngcono ukusebenza kwe-endothelial kanye nokwehlisa umfutho wegazi ngo-47% kubasebenzisi abavamile. Ngale kwenhliziyo, ucwaningo lwe-2018 Age and Aging lwaxhumanisa ama-saunas amasonto onke nobungozi obuphansi bokuwohloka komqondo obungamaphesenti angama-66, njengoba amaprotheni okushisa ukushisa asula amaprotheni e-neurotoxic afana ne-beta-amyloid.
Ukuze uphephe, labo abanomfutho wegazi ophakeme ongalawuleki noma abane-arrhythmia kufanele babonane nodokotela kuqala. Qala ngamaseshini amaminithi angu-5-10, kancane kancane wakhela emaminithini angu-15-20, izikhathi ezingu-3-4 ngesonto. Bhanqa nokugeleza okubandayo ukuze ukhulise izinzuzo zokujikeleza kanye nokukhululwa kwe-endorphin okuthuthukisa isimo. Lokhu akulona nje isiko lamaNordic — kungumuthi wokuvikela. Yenza i-sauna ibe ingxenye engaxoxiswana ngayo yekhithi yakho yamathuluzi yokuphila isikhathi eside, futhi uvumele isayensi yokushisa ikusebenzele.