Nowadays airfare isn't getting any cheaper with fuel costs rising every day. Luckily, there are plenty of ways to find the most affordable fares and also avoid paying as many extra charges as possible when you plan ahead.

    Organic exercise is a good fit for people looking to train functionally. It is defined as exercise that is similar to the type of physical activity performed by ancient hunter-gatherer ancestors. Organic exercise is generally preformed in natural or outdoor settings. {#blank#}1{#/blank#} Organic exercise may include such activities as walking, jogging, swimming, hiking or rock climbing.

    When it comes to organic exercise, one of its most significant benefits is its limited reliance on equipment. {#blank#}2{#/blank#} Going for a jog, walking, or even hiking does not require tools, weights, or even hiking does not require tools, weights, or other products, and therefore, is fairly inexpensive.

    Since the types of activity emphasized in organic exercise programs are similar to those performed as part of daily life, they do not require extensive or long amounts of practice to obtain proficiency(精通). {#blank#}3{#/blank#} Therefore the type of activity recommended in an organic workout routine can be performed by beginning or advanced exercisers alike with relative ease.

    While the type of exercise recommended in an organic workout may be easy enough to perform, the intensity at which it is recommended can be too much for some individuals. {#blank#}4{#/blank#} Individuals who are new to exercise or suffer from a chronic health condition that limits their physical ability may find it difficult to perform exercise that is especially strenuous.

    {#blank#}5{#/blank#} Individuals who are new to exercise may want to talk with their health care provider before choosing this type of activity. In some cases, it may be better to start off with a more traditional workout and slowly transition to organic exercise than starting with this regimen(养生法)right off the bat.

A. Weigh both the benefits and drawbacks.

B. In fact, it can be done nearly anywhere, any time.

C. Therefore it requires very little helping equipment.

D. Choosing the right types of organic exercise is important.

E. Most adults already know how to hike, swim or dig, for example.

F. In fact, one of the biggest drawbacks is the emphasis on high-intensity exercise.

G. While organic exercise may be a good choice for some, it is right for all adults.

    Hiring a self-drive car really adds to the enjoyment of your holiday. There are so many places of interest to visit. And if you enjoy seeing more than just the city centre, there's no better way to explore than by car.

    Conditions of Hire

    ⒈The shortest rental period at these especially low prices is three days. For prices and for periods of one or two days you only see our representative at the hotel.

    ⒉Car hire must be booked six weeks or more before arrival in London to guarantee a car. But if you have been unable to make a booking in advance, please see our representative at the hotel who may still be ab le to help you.

    ⒊The car types on the sheet are examples of the types of cars in each price range, but a particular car cannot be guaranteed.

    ⒋Upon delivery the driver(s) will be asked to sign the car hire company's Conditions of Hire.

    ⒌If you decide to hire a car, just fill in the Booking Form and return it to us. A booking fee of ￡12 as part of the car hire cost is required.

    ⒍Should you be forced to cancel your car hire booking after payment in full (two weeks before date of hire), a cancellation charge of ￡12 will be made.

    As scientists in the Netherlands tried to figure out how to build a super flying robot, they learned from one of nature s flyers: the humble fruit fly(果蝇).And by building this robot, they've gained new insights into how the fly carries out one of its dangerous tasks.

    The robot is called the DelFly Nimble Its wingspan(冀展)is about a foot wide. It has four wings that can beat at 17 times per second, which appear very delicate because they're made of the same material as space blankets.

    In the previous designs, they always had a tail, like a traditional airplane tail, said the robots main designer Matej Karasek. He's based at the Micro Air Vehicle Laboratory at Delft University of Technology in the Netherlands, and he and his colleagues published their findings on Thursday in Science

    “In the previous generations", he said, "flapping wings drove the robot forward while the tail helped to guide and stabilize it. But now the DelFly Nimble is completely controlled by the wings. The challenge then was actually combine the control into the wing movement, and that's what we achieved, Karasek said

    In the latest generation. the wings can each move individually or rotate(旋转)around the body of the robot in order to maximize the machine s agility(灵活 ) The robot can remain in one place in the air for about five minutes on a full battery or fly for more than a kilometer"， Karasek said, "And because the scientists are controlling all the movements, they can use the robot to learn more about how fruit flies actually carry out their dangerous tasks, which has caught the attention of biologists.”

    A lifetime of active exercise will let you keep the body of a 20-year-old well into your 70s, scientists have found.

    The physical decline (衰退) thought to be an unavoidable part of ageing is actually the result of not exercising enough, according to the research, which found that regular cyclists kept the muscles, lungs, and even the immune system (免疫系统) of people years younger. Besides, many serious health problems could be prevented if people became more active, researchers insist.

    Janet Lord, a leading researcher, said, “Our findings prove the false belief that ageing automatically makes us weaker. We now have strong evidence that encouraging people to do regular exercise throughout their lives can solve the problem that we are living longer but not healthier.”

    She looked at 125 cyclists aged 55 to 79 who had been exercising regularly for 25 years and compared them with 75 ordinary people of a similar age and 55 people aged 20 to 36. On a series of physical measures, the cyclists showed no difference from people much younger in their immune systems and making T cells.

    Now Professor Lord aims to discover how much exercise people need to do to stay young. “You needn't work out a lot. It may be intensity (强度) that helps—like going up and down the stairs ten times a day.”

    While there is no magic method of staying mentally and physically fit in later life, the benefits of keeping active can never be ignored, whatever your age or state of health.

    Like a lot of health-care professionals, Dr. Brian Goldman finds it extremely difficult to draw boundaries between his work and personal lives. "There's this view that you should suck it up and do one more thing," says the ER physician and host of CBC's White Coat, Black Art. But that "one more thing" often comes at Goldman's expense.

    "You're exhausted and a patient or their family look at you with begging eyes," he says. "So you have this dilemma: say that your shift is over or give until you're totally spent?" Goldman's work stress combined with family tension after his mother was diagnosed with dementia 20 years ago. Caring for her over a decade was difficult, as was dealing with his father's grief. "When someone else is drowning you, you have to grab a life preserver and save yourself," says Goldman.

    Setting boundaries isn't just important for busy professionals; everyone can benefit from managing situations that cause undue stress or pain. Here are some tips.

First, "If someone's behavior makes you unhappy — and it could be anything from the way they speak to you to repeatedly failing to stick to their promise — then there's room to set limits," says Patrick Keelan, a Calgary psychologist. We often avoid setting limits because we prioritize the happiness and comfort of others over ours. In order to control this impulse, Goldman suggests framing the development of boundaries as a form of self-kindness. When facing an overwhelming situation like the one he was in with his father, Goldman suggests reflecting on what is making you feel uncomfortable, unhappy or unappreciated. "You can't relate to others or be kind to others if you aren't kind to yourself," he says.

Second, once you've become aware of your needs, setting and maintaining boundaries requires clear verbal communication. There are three obstacles to enforcing boundaries in a relationship: fear, guilt and self-doubt, says psychologist Nicole MaCance. We often fear that if we set limits, the other person will reject us, or we feel bad claiming our needs. Keelan proposes setting ground rules before relationships become tense. Start by cooperatively listing values — like mutual respect, support, and loyalty — and then building the guidelines from these values. If you're struggling to reach a consensus, Keelan recommends engaging a third party, such as a therapist, to help.

    Now, if you want a boundary to stick to, you can't enable someone in breaking it. As such, it's crucial to establish consequences for  transgressions (越轨). Otherwise, McMance says," you're giving them permission to violate that boundary." If they won't respect your boundaries, you have to do some soul- searching about the value of the relationship. "When you feel bad more than you feel good in this person's presence, and when the relationship is impacting your self-worth and happiness, it's time to reassess," says McCance. Saying no is hard, but she suggests framing it as saying yes to healthier relationships. "We're all better mothers and partners and brothers when we have boundaries."