The research suggests that to grow, they have to be able to export the hormone into the main stem.
VOA: special.2009.10.13
Earlier work found that male stock traders made more money on days when their level of the male hormone testosterone was higher.
VOA: special.2009.02.25
"The maternal stress that is felt, that stress hormone -- one of them is called cortisol -- can actually leach into the womb.
VOA: special.2011.08.10
Mister Gray says one major difference is the way people react to the hormone testosterone.
VOA: special.2009.03.24
Talking leads to the release of the brain hormone oxytocin, which lowers her stress levels.
VOA: special.2009.03.24
Studies also show that chronic stress reduces the levels of the hormone estrogen in women.
VOA: special.2009.03.24
Xenopus are very sensitive to a pregnancy hormone -- human chorionic gonadotropin.
VOA: special.2010.06.29
This hormone is produced naturally by the pituitary gland in the brain.
VOA: special.2011.04.12
However,scientists have become concerned about the hormone's long-term effects on our health.
VOA: special.2009.03.24
Another substance that can improve performance is human growth hormone,or HGH.
VOA: special.2011.04.12
The body releases this hormone to deal with stressful situations.
VOA: special.2009.03.24
The buds release this hormone down the plant stem.
VOA: special.2009.10.06
Apical buds produce a growth hormone called auxin.
VOA: special.2009.10.06
Scientists discovered the hormone last century.
VOA: special.2010.06.29
This hormone flows down the main stem.
VOA: special.2009.10.13
Cortisol is called the "worry" hormone.
VOA: special.2009.03.24
"And the brain is activated by this challenging environment and signals to the fat to stop the release of this hormone.
VOA: standard.2010.07.14
During's field is gene therapy, so he's working on a way to recreate that effect by modifying the gene that controls the leptin hormone.
VOA: standard.2010.07.14
The study focuses on leptin, a hormone that helps control appetite.
VOA: standard.2009.12.30
And this particular hormone stimulates and feeds the cancer growth,essentially.
VOA: standard.2010.07.14
"We can get hormone levels, physiological data,disease status."
VOA: standard.2010.02.22
The pump developed by researchers is a double pump - in addition to insulin, it automatically secretes glucagon, a hormone that taps glucose reserves in the liver, raising blood sugar levels when they get too low, a condition called hypoglycemia.
VOA: standard.2010.04.15
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