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Fast-growing supplier of heating, ventilation and air conditioning products has its transport operations in its climate-focused crosshairs.

 E-Mail A new study identifies a novel biomarker indicating resilience to chronic stress. This biomarker is largely absent in people suffering from major depressive disorder, and this absence is further associated with pessimism in daily life, the study finds. Nature Communications published the research by scientists at Emory University. The researchers used brain imaging to identify differences in the neurotransmitter glutamate within the medial prefrontal cortex before and after study participants underwent stressful tasks. They then followed the participants for four weeks, using a sur...