Summarize the following:
A prong collar is a training device and not designed for longterm use. It is not your dog's primary collar and should not be used on casual walks or outings. Use the collar for no more than one hour and only during designated training sessions. Using the collar any longer could irritate your dog's neck. It is dangerous to use a prong collar as your primary walking collar. Dogs learn by association. If, in the long term, your dog learns to associate pain with pulling he'll also learn to associate negativity with events that cause him to pull. Most friendly dogs pull in response to seeing other people and animals. If a prong collar is used on every walk, your dog will learn to associate people and animals with pain. With time, he'll become timid and even aggressive in the presence of others and might even begin growling and biting. Prong collars are designed for larger, untrained dogs in order to teach leash manners. They are usually a last resort for dogs whose pulling problems are not resolved through other means. Puppies are new to walking and should not start off with the most intense level of training collar. This will only succeed in scaring a puppy. Also, prong collars are not safe until at least 5 or 6 months of age and, even then, they are not recommended unless other training methods have been exhausted.

summary: Use for only an hour at a time. Do not use a prong collar for a puppy.

Summarize the following:
Use your hands to pull your hair together and up onto the top of your head. Then secure the ponytail with a comfortable hairband. Avoid tying the hairband tight or it might be uncomfortable to sleep in. Keep in mind that this technique will only work if your hair is at least 8 inches (20cm) long. If you've done this correctly, the hair from your ponytail should fall into your face. Take a rectangular scarf that's about 1 by 4 feet (30cm 122cm) and hold both ends in your hands. Stretch out the scarf and place the middle of the scarf near the nape of your neck. Then bring both of the short ends up towards the top of your head near your hairline. If your rectangular scarf is large, consider folding it in half lengthwise to make the wrap skinnier. While your hands are up near the top of your hairline, switch hands so you can cross the ends. Bring the ends back down to your neck. Once you've brought the ends of the scarf back down towards your neck, tie the scarf into a firm knot. The scarf will now be wrapped completely around your hairline which will prevent frizzing as you sleep. For extra hair protection, you can cover your wrapped hair in a silk pillowcase or cap. This can be especially good if you're protecting braids.

summary: Gather your hair onto the top of your head and tie a loose ponytail. Hold the center of a scarf at your neck and pull the ends to the hairline. Cross the ends and pull them back down to the nape of your neck. Tie the scarf into a knot at the nape of your neck.

Summarize the following:
You can use a yoga mat or a gymnastics mat; either way, you want a mat that is going to give your support and cushion while you attempt your headstand. Lay your yoga or gymnastic mat lengthwise in front of you. If you are not confident enough to practice your headstand freely, you can place your mat up against the base of a wall. Anyone who has never attempted a headstand should first practice against a wall. Practicing against a wall will help you find the initial balance and strength needed to hold a free form headstand. Kneel onto your mat. Bring your upper body down to the mat so your hands are out in front of you. Your body should now look like a table, with your knees lined up with your hips and your hands about shoulder-width apart. Bring your elbows down to rest on the mat.
summary: Position your cushioned mat. Position your body like a table top.