1.When you want to drip the liquid medicine down to your eyes, you should be careful that only one drop is enough, because Conjunctival sac of eyes can only hold 20 microlitres of liquid medicine and a drop of liquid medicine’s cubage is about 40 microlitres, so one can only drip one drop down to eyes every time. In addition, the excess dosage of liquid medicine would activate the tear’s coming and dilute the medicine.
2.Long-distance running with many friends could be healthy: it is proved by experiments that the level of hormone of cortex would be elevated by persistent running, which would induce the psychological and physiological fadeaway and loneliness would be present. However, go running with friends can reduce the negative effect largely.
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