The Fred Hutchinson Cancer Research Center, Seattle, Washington state ah chuan pa chalngalh tak mai, sam sen pan tak nei, nui thatchhe ve angreng tak chuan, chumi hmun rawn tlawh tu te chu a hruaikual a.
Toxin (tur) tih leh biohazard (natna kaichhawn theih!) tih intar tuarna hmun ah chuan chu pa chalngalh ve tawh tak, Biologist Mark Roth kum 50 mi chu a Assistant, Jennifer Balckwood chuan a zawhna chhangin, sazu chu an peihfel tawh thu a sawi asawi pah chuan herhna chu an herh nghal a! An sazu dahna kharkhip tlat mai chu tur hlauhawm tak mai hydrogen sulfide chuan a bawh khat ta nghal bawk a. Hetiang tur ounce khat hian mihring 12 vel a tihlum thei a ni.
Sazu chuan boruak chu an hnim vut vut a, chutah a taksa chu che ta manglo chuan a awm ta bawk a. An thlirna khawl ah chuan a lungphu chuan hnuailam a pan thla zel si, han en tirh mai chuan a tha dawnlo tawp mai tih awl tak tur a ni ngei ang. Mahse, chu sazu chu a thi ta hauhlo mai le. Enge a chhan chu ni ta ang le? Hei hi a ni mithiam ten nakin deuh mai a kan damdawi inenkawlna tura an ngaih pakhat chu!
Roth thinks he’s figured out the puzzle. “While it’s true we need oxygen to live, it’s also a toxin,” he explains. Scientists are starting to understand that death isn’t caused by oxygen deprivation itself, but by a chain of damaging chemical reactions that are triggered by sharply dropping oxygen levels.
Tah hian chhiar zawm rawh le.
Hriat zau nan thubelh: In 2007, Japanese researchers revealed the results of a massive study on bystander intervention. They looked at cases where a person (not in a hospital) suffered cardiac arrest in view of a bystander — and with his or her heart in a rhythm that would respond to a defibrillator. The survival rate was 11 percent for those who got standard CPR — mouth-to-mouth plus chest compressions — before an ambulance arrived. The rate was 19 percent for those who got only compressions. The act of keeping oxygen circulating could increase a victim’s chances of surviving by as much as 70 percent.
