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Why do men's faces get bigger as they age?

4 min read

According to a study published in the journal Nature, males' faces not only increase in size until almost 30 years of age, but the sexual dimorphism in the mandible region increases significantly after age 60, contrary to the overall face size which may decrease slightly. Several complex and interrelated biological factors explain why men's faces get bigger as they age.

Quick Summary

Age-related changes in men's facial appearance are caused by a combination of bone remodeling, fat pad redistribution and atrophy, loss of collagen and elastin, and the constant effects of gravity. This multifaceted process leads to a wider, more fragmented lower jaw, sagging skin, and prominent features that can make the face appear bigger.

Key Points

  • Skeletal Remodeling: The facial bones, including the jaw and orbits, continue to change throughout life, with the lower jaw often widening and the midface rotating backward and downward, which alters overall facial structure.

  • Fat Redistribution: Facial fat pads atrophy in some areas and shift in others, leading to a loss of volume in the midface and accumulation of fat in the lower face, forming jowls and contributing to a fuller, less defined look.

  • Loss of Collagen and Elastin: As men age, the breakdown of collagen and elastin fibers in the skin causes it to lose its firmness and elasticity, resulting in sagging, wrinkles, and less-defined facial contours.

  • The Effect of Gravity: Over decades, the constant pull of gravity stretches facial ligaments and pulls soft tissues downward, exacerbating the appearance of sagging skin and shifting fat, which can make the lower face appear heavier.

  • Hormonal Changes: The natural decline in testosterone and fluctuations in other hormones over time can influence skin thickness, elasticity, and bone density, further contributing to the signs of facial aging.

  • Lifestyle Factors: Extrinsic factors such as sun exposure, smoking, and poor nutrition accelerate the aging process by damaging collagen and elastin, intensifying the visible changes in facial size and shape.

In This Article

The Underlying Architecture: Bone Remodeling and Skeletal Changes

For decades, facial aging was largely attributed to the effects of gravity on soft tissues. However, research over the last several decades has highlighted the critical role of facial skeletal remodeling in shaping the aging face. This is perhaps the most fundamental, and surprising, reason why a man's face changes shape and appears bigger or wider over time.

Maxillary and Mandibular Remodeling

Unlike the long bones of the body, which mostly stop growing in early adulthood, the facial bones continue to change throughout life. Studies have shown that the facial skeleton undergoes a predictable pattern of remodeling as a person ages. Specifically, the jawbone (mandible) and the maxilla (upper jaw) change in size and position.

  • Downward and Backward Rotation: Research utilizing CT scans has shown that the midface bones, including the orbits and maxilla, tend to rotate downward and backward with age. This creates a less-defined midface and can contribute to a flattened or older appearance.
  • Jawline and Chin Changes: In men, while the chin's prominence may decrease, the overall width of the lower jaw region (mandible) can increase, contributing to a wider lower third of the face. The bone loss in the jaw area, particularly near the chin and jowls, can result in the soft tissue having less support, leading to sagging and a less-defined, wider look.
  • Orbital Expansion: The eye sockets (orbits) expand with age. This makes the eyes appear more sunken and can contribute to the appearance of droopy eyelids and under-eye bags.

Shifting Soft Tissues: Fat Pads and Gravity

Changes in the facial skeleton are closely followed by changes in the soft tissue, including fat pads, muscles, and skin. These changes, combined with gravity, further alter the face's contours.

Fat Pad Atrophy and Redistribution

The face contains several distinct fat compartments. As men age, these fat pads both diminish in some areas (atrophy) and shift in others (redistribution).

  • Atrophy: Superficial fat pads in the forehead and around the eyes may atrophy, creating hollows and accentuating the bony changes underneath.
  • Redistribution: Deeper fat pads tend to shift and descend, pushed downward by gravity. Fat can collect in less desirable areas, such as around the jowls, which contributes to a fuller, less chiseled lower face. The redistribution of fat from the cheeks can also make the face appear wider at the jawline.

The Relentless Pull of Gravity

Gravity's constant downward pull on the facial tissues is another significant factor. Over time, it stretches the facial ligaments and loosens muscles, accelerating the sagging of skin and the shift of fat pads. This leads to the formation of jowls and a loss of jawline definition.

The Skin Envelope: Collagen and Elastin Loss

While deeper structures are changing, the outermost layer—the skin—is also aging.

Diminished Support Structure

Collagen and elastin are the two key proteins responsible for skin's firmness, elasticity, and youthful appearance. As men age, the production of these proteins decreases, leading to:

  • Sagging Skin: The loss of structural support causes the skin to lose its tightness and sag, particularly around the cheeks and jaw.
  • Deep Wrinkles: With less elasticity, the skin wrinkles more easily and deeply, creating prominent folds like the nasolabial folds (from nose to mouth).

Comparison of Aging Factors Affecting Male Facial Structure

Feature Bone Remodeling Fat Redistribution Skin & Connective Tissue Gravity Hormones
Effect on Face Changes skeletal framework; expands orbits; widens lower jaw. Shifts volume; creates jowls and hollows; alters contours. Leads to sagging; creates wrinkles; thins skin. Pulls everything downward; stretches ligaments. Influences bone density; affects skin thickness and elasticity.
Timeline Continuous throughout life, becoming more apparent in later decades. Begins in middle adulthood, with more noticeable shifts in later years. Gradual, starting in 30s; accelerates due to sun exposure. Constant, with cumulative effect over decades. Hormonal decline (e.g., testosterone) in men affects skin and bone density.
Visible Outcome Altered proportions; sunken eyes; wider lower face. Fuller lower cheeks and jowls; hollowed midface. Loose, wrinkled skin; prominent folds. Sagging cheeks; loss of jawline definition. Thinner, less resilient skin over time.

The Role of Hormonal Changes and Lifestyle

Declining hormone levels and lifestyle choices also influence the rate and pattern of facial aging.

Hormonal Influence

As testosterone levels decline in aging men, it can affect skin thickness, elasticity, and bone density. While men generally have thicker skin than women, this difference diminishes with age. Additionally, lifestyle factors like sun exposure, smoking, and nutrition significantly impact the rate of facial aging.

Lifestyle Impact

  • Sun Exposure: UV radiation breaks down collagen and elastin, accelerating skin aging. Protecting the skin with sunscreen and hats is crucial.
  • Smoking: Smoking diminishes blood flow to the skin and creates free radicals, damaging skin cells and further depleting collagen.
  • Diet and Hydration: A diet rich in nutrients and antioxidants, along with proper hydration, can support skin health and cellular repair, helping to mitigate the effects of aging.

Conclusion: A Multi-Factorial Process

The appearance of a bigger or wider face in men is not due to a single cause but rather a combination of interconnected physiological changes. Skeletal remodeling of the jaw and midface, the descent and redistribution of facial fat, the loss of collagen and elastin in the skin, and the persistent force of gravity all play significant roles. Understanding this multi-factorial process helps explain why a man's youthful, defined face gradually transitions into a more mature, and often wider, appearance over time. Addressing these changes effectively involves considering all contributing factors, from bone health to skin care. For further in-depth information, you can read more about the facial aging process from the inside out.

Frequently Asked Questions

The primary cause is a combination of skeletal remodeling, where facial bones like the jaw and orbits change shape, and soft tissue changes, including the redistribution of fat and the loss of collagen and elastin.

While the facial skeleton undergoes continuous remodeling, certain parts, like the forehead and lower jaw, can grow or change shape over time. This shifts the underlying support structure for soft tissues, contributing to changes in facial proportions.

Jowls and sagging skin are caused by several factors: the downward shift of facial fat pads, the loss of skin elasticity due to decreased collagen, and the stretching of facial ligaments over time due to gravity.

Hormonal changes, particularly the decline in testosterone, can impact skin thickness, moisture, and elasticity. While men generally have thicker skin than women, this difference lessens with age, and a decrease in testosterone can contribute to visible signs of aging.

Yes, overall weight gain can lead to an increase in facial fat, which can make the face appear larger or fuller. Staying at a moderate weight through a healthy diet and exercise can help reduce excess facial fat.

While some believe facial exercises can help tone muscles, there is limited scientific evidence to support that they can effectively reduce fat or alter the skeletal and soft tissue changes that occur with age. Targeting overall body fat through cardio and a healthy diet is a more effective approach.

Protecting your skin from the sun, avoiding smoking, staying hydrated, getting adequate sleep, and maintaining a healthy diet are all crucial lifestyle factors that can help minimize the visible signs of facial aging.

References

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Medical Disclaimer

This content is for informational purposes only and should not replace professional medical advice. Always consult a qualified healthcare provider regarding personal health decisions.