and express oneself in novel and creative ways. Aging is more than the physical, social, psychological, and environmental changes. It involves a renewed energy and appreciation for life, opportunities to explore, and an inner transformation that is unique to every aging individual.
Aging
Aging is characterized by a variety of changes. These changes can be social, physical, or cognitive. Constant adjustments and readjustments are required to maintain some sense of normalcy.
Socially, a number of adjustments may occur, such as a change in the quantity and quality of relationships one has, a change in role from a caregiver to a care receiver, becoming single after being married for 50 years, and transitioning from utilizing informal supports (e.g., family, friends) to formal support systems (e.g., long-term care facilities, respite care services). Society’s perception of aging persons can change as well, with many perceiving older persons as less valued. Environmental modifications can be required if older adults live in environments that are inconsistent with their functional abilities. Changes in their residence, proximity to significant others, and driving status will impact their social situation.
Physical changes are an inevitable consequence of the aging process. Gradual changes will occur in an older adult’s senses, appearance, balance, strength, and cognition, though most conditions can be addressed and corrected in the earlier stages. Sense of taste and smell will decline with age; however, there may exist other causes for impaired taste and smell that are treatable (e.g., dental problems, nasal/sinus problems). Vision will decline, but it can be corrected at earlier stages. Hearing will become impaired, though simple modifications can correct this issue. Balance, flexibility, and muscle strength will decrease, but with adequate exercise, including cardio, strength training, and yoga, these changes do not necessarily impair one’s routine activities.
Cognition depends on a healthy, well-functioning brain. While the ability to learn, store, and retrieve information may require more time than for a younger person, barring any major disorders, older persons adapt well to changes in cognitive status. Older adults continue to have the capacity to learn new information; however, it may take longer and may require the use of more mnemonic devices to assist them.
Healthy, highly functioning older adults have high self-esteem, are internally controlled, maintain balance in their lives, minimize stressful situations, and are actively engaged in a variety of activities. They have a belief system that allows them to handle life’s ups and downs. When confronted with losses, such as that of a spouse, residence, physical and cognitive health, or relationships, they grieve but readjust to the loss and continue pursuing their goals and aspirations. However, even under the best circumstances, there are older persons who respond to losses in such a manner that necessitates the interventions of a professional. Their self-esteem and self-worth may be jeopardized, and therefore, outside support is required. This constant cycle of adjustment and re-establishment is an ongoing process for older adults and can affect their psychological well-being.
Older adults are wise, resilient, and spend most of their lives free of disabilities. However, many physical and mental conditions can accompany the aging process. With a comprehensive geriatric assessment and maintenance of a healthy lifestyle, these conditions are managed so that older persons can continue with their daily activities. Later life provides many opportunities for social interaction, participation in activities, continued employment, volunteerism, and leisure pursuits. These opportunities are different for each person because resources vary. There are older persons who will have the ability to retire, while others will continue to work. Time, income, interest, and health will determine the extent to which each older person is able to take advantage of various opportunities. Promotion and adherence to a healthy lifestyle that includes a good diet, adequate rest, exercise, engagement in meaningful activities, and a connection to others is critical at all stages of the life cycle.
Many transitions occur throughout the life course. Most are managed with little effort, while others require the assistance of professionals. Professional counselors have an opportunity to position themselves to provide advocacy, referral, counseling, and educational services to a growing older population.
Biological Theories Associated With Aging
Numerous theories have been identified to explain why the human body ages, as there is no single theory that can do so. Each theory provides insight into certain aspects of aging, and a firm grasp of these concepts will help mental health professionals better understand their older clients and the aging process.
Neuroendocrine Theory
The neuroendocrine theory of aging focuses on the neuroendocrine system, which is a complicated network of biochemicals that govern the release of hormones altered by the hypothalamus located in the brain. The hypothalamus controls various chain reactions to instruct other organs and glands to release their hormones. The hypothalamus also responds to the body hormone levels as a guide to the overall normal activity, and as we grow older, the hypothalamus loses its precision regulatory ability, and the receptors that uptake individual hormones become less sensitive to them. Additionally, as we age, the secretion of many hormones decline, and their effectiveness is also reduced (Ramaswamy, 2012). As the body ages, it produces lower levels of hormones that are vital for well-being. Dehydroepiandrosterone (DHEA) is a hormone that comes from the adrenal gland and also made in the brain. DHEA leads to the production of male and female sex hormones. DHEA levels begin to decrease after age 30 and levels decrease more quickly in women. Lower DHEA levels are found in people with hormonal disorders, HIV/AIDS, Alzheimer’s disease, heart disease, depression, diabetes inflammation, immune disorders, and osteoporosis (Mayo Clinic, 2015). DHEA may cause side effects related to other hormones, and women may experience symptoms such as increased unnatural hair growth and deep voice, and men may experience urinary urgency and aggression, among other symptoms. Other side effects that may occur in either sex include sleep problems, headache, nausea, skin itching, and mood changes; and DHEA may affect levels of other hormones such as insulin (hormone that controls the glucose levels in the blood) (Mayo Clinic, 2015). Melatonin is another hormone and has been called the antistress hormone due to its ability to regulate rhythms of other hormones and its ability to blunt the negative effects of cortisol. Cortisol is a hormone that regulates a wide range of processes throughout the body including metabolism and the immune response. It also has a very important role in helping the body respond to stress; however, when cortisol levels are elevated longer than normal, it contributes to illnesses and diseases because cortisol is considered the stress hormone when it is elevated. A decline in human growth hormone results in changes in body composition. Lean body mass shrinks, and there is an increase in adipose (fatty) tissue. This loss of lean body mass leads to atrophy, or wasting away, of skin, skeletal muscle, and bone. Decreased levels of human growth hormone can also lead to elevated cholesterol levels (Park et al., 2011).
The neuroendocrine theory proposes that the most effective approaches to delay (and even reverse) the aging process and ameliorate the diseases of aging is to restore hypothalamic (and peripheral) receptor sensitivity, restore hormone levels to more youthful values by hormone replacement therapy, prevent damage effects of hormones, and restore intracellular bioenergetics (energy transfers in living cells). This theory explains the cause of major diseases of aging, which contribute to over 85% of deaths and disabilities of middle-aged and elderly individuals. These diseases include obesity, atherosclerosis, hypertension, diabetes, and cancer among others (Dean, 2012).
Autoimmune Theory of Aging
The autoimmune theory of aging proposes that protective immune reactions decline with age, as the body becomes less capable of producing sufficient antibodies (Bengtson, Putney, & Johnson, 2005). According to this theory, aging is attributed to the decline of the body’s immunological system. Studies indicate that as individuals
