Feeling anxious Your mood may actually change how your dinner tastes, making the bitter and salty flavors recede, according to new research. This link between the chemical balance in your brain and your sense of taste could one day help doctors to treat depression. There are currently no on-the-spot tests for deciding which medication will work best in individual patients with this condition. Researchers hope that a test based on flavor detection could help doctors to get more prescriptions right first time.
It has long been known that people who are depressed have lower-than-usual levels of the brain chemicals serotonin or noradrenaline, or in some cases both. Many also have a blunted sense of taste, which is presumably caused by changes in brain chemistry. To unpick the relationship between the two, Lucy Donaldson and her colleagues at the University of Bristol, UK, gave 20 healthy volunteers two antidepressant drugs, and checked their sensitivity to different tastes. T
A. people to gain better mood
B. doctor to cure depression
C. people to increase appetite
D. researchers to get prescriptions
An air of anxious uncertainty spread throughout the small Indian camp as the sun dawned that morning. Some braves gathered beside a smoking campfire. Murmuring sounds could be heard as they talked quietly. Women nervously performed their domestic tasks, preparing a small meal. Several sad, old men sat mute, their morale very low.
The camp was pitched at the edge of a deep valley—so deep that one could barely see the calm water at the bottom. The Indians had been taken by surprise and were surrounded and attacked by enemy forces. They fought bravely, but they were degraded by defeat. Their homes were destroyed. Those who had survived had been pursued by the enemy. The chase had lasted for days. Persuaded by their leaders to press on, they had made a wrong turn. Their hazardous journey ended at the edge of a valley—a desperate situation. Before them was a great hole in the earth. Behind them was the enemy. No wonder they were frozen with fear. Where could they g
A. tried to persuade their leaders to surrender to the enemies
B. were still as cheerful as before
C. still remained fearless and loyal to their leaders
D. were in very low spirits
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