Each day in the United States, approximately 9 people are killed and more than 1,000 injured in crashes that are reported to involve a distracted driver. 1 Distracted driving is driving while doing another activity that takes your attention away from driving.
This is called the post-void residual. The bladder has a approximately 500ml capacity. You should feel a desire to void at ~250ml. Urinary retention is measured by using a special type of ultrasound (bladder scan), or by inserting a bladder catheter and measuring how much urine comes out. I'm a 4th year US med student. On one of my urology rotation I asked the Sr. resident this exact question.
By changing your eating habits, listening to your body and using restraint, you can control your diet by knowing when you are full. Understanding Satiety Your stomach can hold up to 4 liters of volume -- about 17 cups -- but the feeling of satiety is not caused by your stomach being full. Instead, feeling full is a result of your brain reacting to chemicals released when you put food or drink in your stomach. Your brain takes around 20 minutes to register these chemicals. After your meal, the levels continue to rise over 10 to 30 minutes.