One of the most debated issues about alcohol consumption has been the consistent finding that those who don't drink tend to die sooner than those who do.The standard Alcoholics Anonymous explanation for this finding is this：many of those who give up alcohol are actually former hard­core drunks who had already brought health problems associated with drinking.

    But a new paper suggests that abstaining(戒除)from alcohol does tend to increase one's risk of dying，even when you leave former problem drinkers out.The most shocking part—abstainers'(禁酒者)mortality rates(死亡率)are higher than those of heavy drinkers.

    Moderate(适度的)drinking，which is defined as one to three drinks per day，is associated with the lowest mortality rates.Moderate alcohol use is thought to improve heart health，circulation and sociability，which can be important because people who are cut off don't have as many family members and friends who can notice and help treat health problems.

    But why would abstaining from alcohol lead to a shorter life？It's true that those who abstain from alcohol tend to be from lower socioeconomic classes，since drinking can be expensive.And people of lower socioeconomic status have more life stressors(压力因素)．

    Though heavy drinking is associated with higher risk for many diseases，heavy drinkers are less likely to die than don't drink. One important reason is that alcohol strengthens social interactions，and social interactions are vital for maintaining mental and physical health.Nondrinkers show greater signs of depression.

    The authors of the new paper are careful to note that even if drinking is associated with a longer life，it can be dangerous：it can affect your memory severely and it can lead to falls and other troubles that can affect your life.There's also the dependency issue：if you become addicted to alcohol，you may spend a long time trying to get off the bottle.

    Fear may be felt in the heart as well as in the head, according to a study that has found a link between the cycles of a beating heart and the chance of someone feeling fear.

    Tests on healthy volunteers found that they were more likely to feel a sense of fear at the moment when their hearts are contracting(收缩) and pumping blood around their bodies, compared with the point when the heartbeat is relaxed. Scientists say the results suggest that the heart is able to influence how the brain responds to a fearful event, depending on which point it is at in its regular cycle of contraction and relaxation.

    Sarah Garfinkel at the Brighton and Sussex Medical School said: “Our Study shows for the first time that the way in which we deal with fear is different depending on when we see fearful pictures in relation to our heart.”

The study tested 20 healthy volunteers on their reactions to fear as they were shown pictures of fearful faces. Dr Garfinkel said, “The study showed that fearful faces are better noticed when the heart is pumping than when it is relaxed. Thus our hearts can also affect what we see and what we don't see一and guide whether we see fear.”

To further understand this relationship, the scientists also used a brain scanner(扫描仪) to show how the brain influences the way the heart changes a person's feeling of fear.

“We have found an important mechanism by which the heart and brain ‘speak' to each other to change our feelings and reduce fear,” Dr Garfinkel said.

    “We hope that by increasing our understanding about how fear is dealt with and ways that it could be reduced, we may be able to develop more successful treatments for anxiety disorders, and also for those who may be suffering from serious stress disorder.”

    There was once an 11-year-old boy who went fishing every time he went to an island in the middle of a New Hampshire lake.

    On the day before bass (巴斯鱼) season opened, he and his father were fishing early in the evening, catching other fish with worms. Then he tied on a small silver lure(鱼饵) and put it into the lake. Suddenly the boy felt something very big pulling on the lure. His father watched with admiration as the boy skillfully brought the fish beside the bank. Finally he lifted the tired fish from the water. It was the largest one he had ever seen, but it was a bass.

    The boy and his father looked at the big fish. The father lit a match and looked at his watch. It was 10 pm — two hours before the season opened. He looked at the fish, then at the boy. “You'll have to put it back, son,” he said.

    “Dad!” cried the boy. “There will be other fish,” said his father. “Not as big as this one,” cried the boy. He looked around the lake. No other fishermen or boats could be seen in the moonlight. He looked again at his father.

    Even though no one had seen them, nor could anyone ever know what time he had caught the fish, the boy could tell from his father's voice that the decision couldn't be changed. He threw the huge bass into the black water.

    The big fish disappeared. The boy thought that he would never again see such a big fish.

    That was 34 years ago. Today the boy is a successful architect in New York City. He often takes his own son and daughters to fish at the same place.

    And he was right. He has never again caught such a large fish as the one he got that night long ago. But he does see that same fish ... again and again ... every time he has an ethical (道德的) decision to make. For, as his father had taught him, ethics are simple matters of right and wrong. It is only the practice of ethics that is difficult.

    Living and dealing with kids can be a tough job these days, but living and dealing with parents can be even tougher.

    If I have learned anything in my 18 years, it is communication that is very important, both when you disagree and when you get along. With any relationship, you need to let others know how you are feeling. If you are not able to communicate, you drift apart. When you are mad at your parents, or anyone else, not talking to them doesn't solve anything.

    Communication begins with the concerns of another. It means that you can't just come home from school, go up to your room and ignore everyone. Even if you just say and see how their day was for five minutes, it is better than nothing.

    If you looked up the word “communication” in a dictionary, it would say “the exchange of ideas, the conveyance of information，correspondence (通信)，means of communication: a letter or a message”. To maintain a good relationship, you must keep communication strong. Let people know how you feel, even if ifs just by writing a note.

    When dealing with parents, you always have to make them feel good about how they are doing as a parent. If you are trying to make them see something as you see it, tell them that you'll listen to what they have to say, but ask them politely to listen to you. Yelling or walking away only makes the situation worse.

     This is an example: one night, Sophie went to a street party with her friends. She knew she had to be home by midnight after the fireworks, but she didn't feel she could just ask to go home. That would be rude. After all, they had been nice enough to take her along with them. Needless to say, she was late getting home. Her parents were mad at first, but when Sophie explained why she was late, they weren't as mad and let the incident go.

    Communication is the key factor here. If Sophie's parents had not been willing to listen, Sophie would have been in a lot of trouble. Communication isn't a one-way deal: it goes both ways. Just remember: if you get into a situation like Sophie's, tell the other person how you feel—listening is the key factor to communication.

    Some people think that success is only for those with talent or those who grow up in the right family, and others believe that success mostly comes down to luck. I'm not going to say luck, talent, and circumstances don't come into play because they do. Some people are born into the right family while others are born with great intelligence, and that's just the reality of how life is.

    However, to succeed in life, one first needs to set a goal and then gradually make it more practical. And, in addition to that, in order to get really good at something, one needs to spend at least 10,000 hours studying and practising. To become great at certain things, it'll require even more time, time that most people won't put in.

    This is a big reason why many successful people advise you to do something you love. If you don't enjoy what you do, it is going to feel like unbearable pain and will likely make you quit well before you ever become good at it.

    When you see people exhibiting some great skills or having achieved great success, you know that they have put in a huge part of their life to get there at a huge cost. It's sometimes easy to think they got lucky or they were born with some rare talent, but thinking that way does you no good, and there's a huge chance that you're wrong anyway.

    Whatever you do, if you want to become great at it, you need to work day in and day out, almost to the point of addiction, and over a long period of time. If you're not willing to put in the time and work, don't expect to receive any rewards. Consistent, hard work won't guarantee you the level of success you may want, but it will guarantee that you will become really good at whatever it is you put all that work into.

    TRAIL SAFE! is a unique safety training program designed specifically for National Park Service (NPS) Trail Volunteers, but is useful to everyone! It's based upon NPS Operational Leadership Training, where the human factor of safety is explored. TRAIL SAFE! captures (捕捉) the core learning objectives of the 16-hour Operational Leadership course while allowing volunteers to learn from their own homes online.

    The TRAIL SAFE! series includes eight video lessons, each ranging in length from 18 to 40 minutes long. Watch them over the course of multiple days, or "binge watch" the entire series in three hours—it's up to you—but please watch them in order from Lesson 1 through Lesson 8. After viewing the lessons, send your training verification (验证) emails to register your participation. When you have viewed and registered for all eight individual lessons, each participant will receive a TRAIL SAFE! pin and a SPE/GAR card in the mail for use in the field. Thank you for helping to make Sleeping Bear Dunes one of the safest work environments for NPS Trail Volunteers like yourself.

    Ready to start?

    Click on this link to access all TRAIL SAFE! videos: https://www.nps.gov/iatr/trail-safe.htm

    If you require Audio Descriptive versions of TRAIL SAFE! the link to those videos is also available on the Ice Age Trail site.

    Record your participation

    In order to receive credits for your participation, please fill in your answers to the following questions and email to: Matthew mohrmannps.gov.

    Which video lesson did you just complete viewing?

    Name of the Trail where you volunteer.

    Your name and full mailing address, so we may send your course completion materials to you.

    Names and addresses of others if you are viewing this lesson in a group setting.

    Optional: Please let us know any comments or suggestions you have about this lesson.

    Upon registering your completion for the entire eight lesson series, you'll receive your TRAIL SAFE! pin and risk assessment card via mail.