| Too much sympathetic nervous system activity can be associated with stress, anxiety, and dysphoric mood. |
| Drugs can modulate the activity of the sympathetic nervous system by affecting the synthesis, storage, release or reuptake of noradrenaline. |
| Carbon is cycled through the hydro and geosphere through biological, physical/chemical, geological, and human activity. |
| The club assembles once a month to discuss upcoming activities. |
| He is responsible for directing the activities of the sales team. |
| School activities are being curtailed due to a lack of funds. |
