Related Experiment Video
Updated: Apr 22, 2026

03:47
Author Spotlight: Advancing Facial Rejuvenation Therapy with Post-Laser Salicylic Acid Application
Published on: September 27, 2024
1.6K
The Science and Theory behind Facial Aging
Jordan P Farkas1, Joel E Pessa1, Bradley Hubbard1
1Department of Plastic Surgery, University of Texas Southwestern Medical Center, Dallas, Tex.
Plastic and Reconstructive Surgery. Global Open
|October 8, 2014
Summary
Aging affects the face through complex changes in skin, soft tissue, muscle, and bone. This review explores current theories and evidence on facial aging across these anatomical layers.
Area of Science:
- Gerontology
- Facial Anatomy
- Dermatology
Background:
- Age-related facial alterations are multifactorial, involving skin, soft tissue, muscle, and bone.
- Understanding of these changes has evolved significantly over the last century.
Purpose of the Study:
- To provide a comprehensive overview of current literature on age-related facial changes.
- To synthesize existing theories and evidence regarding skeletal, soft tissue, and skin aging in the face.
Main Methods:
- Literature review of scientific publications on facial aging.
- Synthesis of historical and contemporary theories.
- Analysis of evidence related to anatomical changes over time.
Main Results:
- Facial aging is a layered process influenced by multiple anatomical components.
- Evolution of scientific understanding highlights the interplay between skin, soft tissue, muscle, and bone.
- Current evidence supports various theories explaining the progression of facial aging.
Conclusions:
- The etiology of age-related facial changes is complex and multifaceted.
- A comprehensive understanding requires considering changes across the skeleton, soft tissues, and skin.
- This review consolidates current knowledge to guide future research and clinical approaches.
More Related Videos
Related Concept Videos
Aging
1.1K
Aging is a complex biological phenomenon influenced by various processes that affect cellular and systemic functions. Several prominent theories attempt to explain its mechanisms, highlighting cellular limitations, oxidative damage, and hormonal changes as central factors in aging.
Cellular Clock Theory
The cellular clock theory posits that the human lifespan is closely tied to the finite capacity of cells to divide, a phenomenon governed by telomeres, which are protective caps at the ends of...
Cellular Clock Theory
The cellular clock theory posits that the human lifespan is closely tied to the finite capacity of cells to divide, a phenomenon governed by telomeres, which are protective caps at the ends of...
1.1K
The Effect of Aging on Tissues
3.5K
Several body functions deteriorate with age. The external signs of aging are easily identifiable. For example, the skin becomes dry, less elastic, and thins out, forming wrinkles. The skin of the face begins to appear looser due to a decrease in the levels of elastic and collagen fibers in the connective tissue. Additionally, melanin production in the hair follicle decreases with age, resulting in gray hair. Moreover, the senses of sight and hearing decline, so glasses and hearing aids may...
3.5K
Facial Feedback Hypothesis
943
Charles Darwin proposed that facial expressions are an evolutionary adaptation for communication. He argued that these expressions are not influenced by culture but are universal across species. For example, a snarling expression with exposed teeth signals a threat in many animals, including humans. Darwin also suggested that displaying an emotion can intensify the feeling. Smiling, for example, could enhance one's sense of happiness. This idea laid the foundation for understanding the role...
943
Muscles for Facial Expressions
5.6K
The craniofacial muscles are a collection of approximately 20 thin skeletal muscles situated beneath the skin of the face and scalp. These muscles, primarily responsible for the vast array of human facial expressions, originate from the bones or fibrous structures of the skull and extend outwards to connect with the skin. While most skeletal muscles in the body are enveloped in thick fascia, facial muscles generally have a more delicate fascial covering, with the buccinator muscle being a...
5.6K
Bone Disorders
7.9K
Aging and its effect on bone remodeling is the most common cause of bone disorders. In young and healthy people, bone deposition and resorption happen at an equal rate to maintain optimal bone health.
Bone deposition is also affected by the levels of sex hormones like estrogen and testosterone that promote osteoblast activity and bone matrix synthesis. When the level of these hormones decreases due to aging, it causes a reduction in bone deposition. As a result, bone resorption by osteoclasts...
Bone deposition is also affected by the levels of sex hormones like estrogen and testosterone that promote osteoblast activity and bone matrix synthesis. When the level of these hormones decreases due to aging, it causes a reduction in bone deposition. As a result, bone resorption by osteoclasts...
7.9K
Renewal of Skin Epidermal Stem Cells
2.4K
The skin is divided into epidermis, dermis, and hypodermis, the skin's outermost, middle, and inner layers. The human epidermal layer regularly undergoes renewal, where old, dead cells are replaced by new cells. Epidermal stem cells or EpiSCs divide and differentiate to restore the lost cells. For the renewal process, some EpiSCs continuously self-renew. In contrast, few others differentiate into transit-amplifying cells, which later form prickle or spinous cells, followed by granular...
2.4K

