Write an article based on this "Look for first appearances of seminal characters. Consider the age of the comic book. Consider the historical context of the comic book when it was published. Look for older comics in good condition."
article: The most valuable comic books historically have been those that featured the first appearance of characters that have had a major impact on the genre. A partial list of such comics is given below: Action Comics #1 (June 1938): The first appearance of Superman. Detective Comics #27 (May 1939): The first appearance of Batman. Superman #1 (June 1939): The first comic devoted to the Man of Steel, and the first comic book named for a superhero character. Marvel Comics #1 (October 1939): The first appearances of the original Human Torch (Jim Hammond) and the Sub-Mariner. (First title published by Timely Comics, which would eventually become Marvel Comics.) Flash Comics #1 (January 1940): First appearance of the original Flash (Jay Garrick) and the original Hawkman. More Fun Comics #52 (February 1940): First appearance of the Spectre, the first ghost superhero Batman #1 (Spring 1940): Besides being the first comic devoted solely to the Caped Crusader, it also introduced Robin, the Boy Wonder, and arch-foe the Joker. All-American Comics #16 (July 1940): The first appearance of the original Green Lantern (Alan Scott). Fantastic Four #1 (November 1961): First appearance of the team of that name, composed of Mister Fantastic, the Invisible Girl, the Human Torch (Johnny Storm), and the Thing. (This was the first title published by Marvel Comics under that company name.) Amazing Fantasy #15 (August 1962): First appearance of Spider-Man. Other first appearance issues include All-Star Comics #3 (Winter 1940/41), the first appearance of the Justice Society of America (the first superhero team); All-Star Comics #8 (December 1941), the first appearance of Wonder Woman; Whiz Comics #2 (February 1940), the first appearance of the original Captain Marvel; Captain America #1 (March 1941), the first appearance of and Police Comics #1 (August 1941), the first appearance of Plastic Man. Older comic books are more valuable than newer comics because of both their age and their relative rarity compared to newer comics. Comics published during the Platinum and Golden Ages are particularly valuable, while comics less than 20 years old have more intrinsic than monetary value to collectors. Comic book ages are described below, with the beginning and ending years: The Platinum Age (1897 to 1933): These comics predate the superhero era, featuring characters such as the Yellow Kid, the Katzenjammer Kids, Buster Brown, and characters featured initially in comic strips and reprinted in comic book format. Only a select group of dealers deal in comics this old. The Golden Age (1933 to 1955): While some consider the Golden Age of comics to have begun with the premiere of Superman in Action Comics #1, others begin the Golden Age sooner to include predecessors to the Man of Steel created for comic books, such as Doctor Occult, premiering October 1935 in New Fun #6. These comics are typically 4-color comics 64 pages in length, declining to 48 pages by the end of the era. The Silver Age (1956 to 1969): Many consider the Silver Age to have begun with the premiere of the second Flash (Barry Allen) in Showcase #4 (October 1956), while others consider the premiere of the Martian Manhunter in Detective Comics #225 (November 1955) to be the starting point. Older Silver Age comics are 48-page 4-color comics, with later titles declining to 32 pages. The Bronze Age (1970 to 1985): Comics became more mature during this period, with heroes such as Green Lantern and Green Arrow confronting social issues along with super villains and Iron Man confronting his alcoholism instead of his heart condition. The Iron Age or Modern Age (1986 to present): Comics became still more mature, and story continuity became more important. Comics companies increasingly turned to sweeping story arcs that crossed through their entire line of comics, such as DC's Crisis on Infinite Earths and Zero Hour and Marvel's Secret Wars and World War Hulk. Story arcs that encompassed only a single character or team were and are frequently collected and reprinted as graphic novels. Many comics of this era are printed on slicker, higher-quality paper than comics of the previous eras. (Some comic book historians use the term "Modern Age" to encompass both the Bronze and Iron Ages of comics.) An understanding of the time period in which a comic book was published can help you understand which comic books are more valuable than others. Captain America was predated by several patriotic-themed heroes, including Mr. America and the Shield. Because his premiere showed him punching Hitler's jaw, he became more famous than his competitors and so became the more enduring character. Likewise, Wonder Woman's premiere near the start of America's entry into World War II, coupled with her powers, patriotic costume, and self-reliant attitude made her the foremost super heroine in comics, even though several super heroines predated her. The better the condition the comic book is in, the more it can earn when sold to another collector. Comic book condition is affected by how often the comic has been read and the way it has been stored. Condition is rated 2 ways, with a set of verbal grades and with a numeric scale. The term "Mint" refers to comics which show the least wear and tear, and progresses downward through "Very Fine," "Fine," "Very Good," "Good," and "Fair." The worst comics are graded "Poor"; these comics are missing their covers and some of the pages. You'll find these terms in comics guides such as the Overstreet Price Guide. Numeric grades run as high as 10.0 to as low as 0.5. These grades are used by comics grading services such as the Comic Guaranty Company (CGC) and Professional Grading Experts (PGX). These grades are more precise than the verbal grades and have accordingly caused the verbal scale to be modified with sub-grades to better correspond to the numeric scale.

Write an article based on this "Read the instructions carefully. Ensure you know how to turn the machine off quickly if you run into trouble. Start slowly and increase your speed once you're comfortable with the movement. Resist the temptation to talk to the person next to you. Decrease speed over several minutes at the end of your workout to allow your body time to cool down. Use your gym towel to clean your sweat off the machine. Limit your workout to 30 minutes if all the machines are in use, other members are waiting to use a machine or if the fitness center is crowded."
article: Most aerobic machines will stop when you stop, but some, such as a treadmill, will not. Most people play music, watch TV or just listen to the sound of their breathing while they use an aerobic machine. Talk is distracting. If you stop suddenly, you may lose your balance when you get off the machine.

Write an article based on this "Stop exercising a few hours before bedtime and drink plenty of water. Avoid large or spicy foods or meals. Avoid drinking ice cold water. Take a tepid shower or a bath. Find a cool, dark sleeping spot that is on a lower floor or in a basement. Replace heavy bedding with lighter bedding. Put your bedding in the freezer. Open your windows or use an air conditioner. Sleep in cotton clothing or wear as little as possible when going to bed. Wipe your face, hands, and feet with a damp cloth. Run your wrists or the inside of your arms under cold running water for 30 seconds."
article:
When you exercise, you raise your body temperature and retain heat. Not exercising several hours before you go to bed will give your body time to cool down. You should also drink lots of water throughout the day to stay hydrated. You may also want to keep water by your bedside. Eating a heavy meal or spicy food before bedtime may cause you to feel even hotter. Eat a light dinner at least two to three hours before bed and skip the spices and hot sauce. Drinking cold water not only slows digestion, it also slows down metabolism by constricting blood vessels and thereby decreasing hydration and ability of your body to cool off. Drink room temperature water instead. Don't take a very cold shower, as this can have a rebound effect. Your body temperature may actually rise to counteract the cold water. Instead, have a medium cold, or tepid, shower. You can also soak your hands and feet in tepid water. Your hands and feet are your "radiators", or the areas of your body that tend to heat up. Cooling them down by soaking them will regulate your body temperature and cool you down. Heat rises, so find a spot that is low to ground, such as the floor of your bedroom, or that is low in your home, such as the bottom floor or the basement. Remove thick mattress protectors or pads, which retain heat, and any heavy blankets or duvets. Use lighter bedding like cotton sheets and lightweight cotton weave blankets on your bed. Straw or bamboo mats are also great for a cool night's sleep. They do not retain body heat and will not warm you up. You can create a bamboo mat bed on the floor of your bedroom for an alternative spot to your regular bed. Stick your pillow cases, bed sheets and blankets in the freezer 30 minutes before you plan to go to bed. Once you place the bedding on your bed, they should stay cool enough for 30 to 40 minutes, just enough time to fall asleep. Avoid getting your bedding wet or sleeping on or in wet sheets or clothing. Don't dip your socks in cold water and wear them to bed, or wear a wet t-shirt to bed. Bringing anything wet into the room, or wearing anything wet, will only trap dense humidity in your room and cause discomfort. An hour before bedtime, open the windows in the room to increase air circulation and cool down the room. However, you should close the windows before you fall asleep to avoid heating up the room with air during the night. While you sleep your body temperature dips to its lowest point at around 3 am. At 3 am, the temperature outside is also extremely low. If you are asleep with the windows open, the muscles around your neck and head can tense up involuntarily due to the sudden temperature drop and you can be woken up. Keep the windows closed and the blinds or shades drawn during the day to avoid heating up the room. Though you may be tempted to strip down and go naked to stay cool, sleeping naked can make you feel hotter as it does not allow moisture to evaporate between your body and the sleeping surface. Go for cotton sleepwear, and avoid synthetic fabrics like nylon or silk, as they are not breathable and can make you feel hotter. Use a damp cloth or towel by your bedside to wet your face or arms throughout the night. But avoid going to sleep with a wet face or arms. Once you have wiped your body, dry yourself off with a dry towel before you go to sleep. You can also buy special towels that are made of hyper-evaporative material that retains water, but stays dry to the touch. They will cool you down without getting your skin wet. These areas are where your blood stream flows closest to the surface of your body. Running them under cold water for a minute will cool your blood down, making your whole body cooler.