Bartrop and colleagues compared the immune systems of 26 people whose spouses had died 8 weeks earlier with those of 26 matched control-group participants whose spouses had not died. The blood samples revealed that was much lower in the bereaved people than in the controls.

lymphocyte functioning

Explanation:

Bartrop and colleagues compared the immune systems of 26 people whose spouses had died 8 weeks earlier with those of 26 matched control-group participants whose spouses had not died. The blood samples revealed that lymphocyte functioning was much lower in the bereaved people than in the controls.

Lymphocytes are white blood cells that function as part of immune system. They fight with foreign disease causing invaders inside the body.

i think its toxic gasses but i could be wrong

the technology changed agriculture in an impacting manner since many people left the field work by a cellular or other technological appliances