A good trick for double chins is to stretch your neck, lift your chin, then slightly push your head forward, about an inch. It will also make it appear elongated. You will not be able to tell in the pics. Don't slouch, put your shoulders back (I do a small shoulder roll back to get in position).
Losing neck fat is a process that can often be kickstarted by adopting healthy lifestyle changes. Anecdotal evidence suggests that neck and chin exercises can help us to minimise layers of neck fat, while exercise and a healthy diet can help us to lose weight around this area.
The causes for this can be anything from water retention to more serious causes such as hormonal, thyroid or gland problems. Or, it could simply be genetic, some people are genetically predisposed to the appearance of neck fat.
But if you want to hide your neck, wear button down shirts with collars. Not polo shirts with flimsy fabric, but dress shirt material with stiff collars. Covers up a ton of neck, and you can leave the shirt unbuttoned at the top because it's still covering the sides and back.
Try a lob hairstyle
 Cindy Marcus, a professional hairstylist in Las Vegas and editor-in-chief of Latest Hairstyles, suggests trying a lob, or a long bob. “This style will elongate the face and neck and draw attention away from the problem area,” she says. Another option to consider is face-framing layers.
A thicker neck – larger than 17 inches for men and 15.5 inches for women – usually means a narrower airway, especially when lying down. That's because there is likely more fat tissue at the base of the tongue and lining the airway.
The v-neck is capable of making a person appear slim and long. This type of neckline can create the letter "V," directing the eye down towards the body, hence creating a longer and leaner outline of the silhouette.
Study 4 specifically showed that men with larger sternocleidomastoid and upper trapezius muscles -- muscles implicated in damage resistance and infliction, respectively -- are perceived as more dominant (i.e., strong, masculine, anger-prone, and aggressive) and attractive (i.e., short and long-term attractiveness).
Here are a few steps you can try at home: Neck and back strengthening exercises: Chin tucks, shoulder blade squeezes and strength training exercises that target your core and upper body can help build the muscles needed to support your spine and encourage proper alignment.
Neck length is governed by solid bones — your cervical vertebrae — which were sized by your genes before you breathed. Your neck won't stretch any more than your limbs. If you really aren't fat, then your neck thickness is muscular mass. Your genes, again, gave you a big neck.
In summary, contouring your neck is a simple technique that can make a big difference in your overall look. By applying bronzer or contouring powder to the hollows of your neck, highlighting the center of your neck, and blending everything well, you can create the illusion of a defined jawline and a slimmer neck.
Some believe it may help you get a chiseled jawline, reduce facial fat, or a double chin. However, there is no scientific research to support these claims. Chewing gum, as a type of facial exercise, might give your facial muscles a minor workout, but it is unlikely to create noticeable changes to your jawline.
V Neckline
 It's universally flattering and popular for all figures, as it can create a balanced look, not only draws the eye upward to the face but also enhance the neck and elongate the body. Plus, there's also versatility in a V-neck because you can lower or raise the V with a button-down shirt.
An asymmetrical bob is much shorter in the back, and then angles down and is longer in front. The cut should start in the back around the nape of your neck and then end in the front 2 to 3 inches below your chin. It elongates the neck and lengthens the face.
If you want to get rid of neck fat, the most straightforward approach is to lose weight with a combination of healthy eating and regular exercise. By cutting back on junk food snacks, drinking enough water and eating a diet of lean protein and vegetables, you'll likely see improvements to both neck and body fat.
Madelung's disease is a rare disorder of fat metabolism (lipid storage) that results in an unusual accumulation of subcutaneous fat (adipose tissue) deposits around the neck, shoulders, trunk, hips, upper arms and thighs. The fat masses can progress quickly over months or slowly over years.
The average NC was 36.9 cm, 39.7 cm and 42.1 cm for normal-weight, overweight and obese men, and 34.1 cm, 36.1 cm and 38.5 cm for women in the corresponding groups.
Does short or long hair make you look younger? Long hair can enhance facial features by diverting attention away from wrinkles or age spots and adding volume to your hair. Short hair does not need to age you, though, as the style and texture of shorter hairstyles can add a youthful appearance.